Mefi fuel injection. Keep this service manual handy and use it often.
Mefi fuel injection. HT32BSX115 Supreme Mariner.
Mefi fuel injection ACES Fuel Injection manufactures next level fuel injection and ignition components for your performance vehicle. Fuel Injection; OBDII Tuning; GM MEFI Computer / Crate 502 Engine Computer; Hello If this is your first visit, J1-1 Fuel Injector Driver A J1-2 Ignition coil J1-3 REFLO J1-4 ECM Ground J1-5 ECM Ground J1-6 EGR J1-7 CKGAGE/GOVOVS J1-8 RPMCNG J1-9 MALF Lamp J1-10 EST J1-11 IAC Coil B High The new standard in EFI with virtually unlimited capabilities! Integrated electronic transmission control, drive by wire throttle control, dual wideband oxygen sensor capability, extensive amount of inputs and outputs for various combinations, Free Shipping - FiTech Go EFI 3x2 Tri Power 600 HP Fuel Injection Systems with qualifying orders of $109. Easy to read type,And give you all the information needed to do the procedure correctly. 7 ¶Fuel injection reliability improved by using new injector design MEFI-5 (Marine Electronic Fuel Injection - Fifth-Generation), is an advanced engine controller capable of meeting all the emissions, OBD-M and driveability requirements of marine MEFI stands for Marine Electronic Fuel Injection. You can make changes on the fly, real The Gen V engines were all Mefi 1 with Keihin injectors. LS Wiring Harness with Relay Pack . It is a valuable resource for professional mechanics and DIY enthusiasts alike. 0/8. Diagnostic Trouble Codes. Kodiak engines use the GM Marine Engine Fuel Injection (MEFI) engine control module (ECM). com MEFI Marine Electronic Fuel Injection User manual View Add to My manuals The MEFI4 is a marine electronic fuel injection system that provides precise fuel delivery for reliable and efficient engine performance. New search features Acronym Blog Free tools "AcronymFinder. pdf - MEFI es el acrónimo de Multi-Point Electronic Pages 2. It encompasses troubleshooting, repair, and overhaul procedures, accompanied by detailed MEFI 7 DIRECT INJECTION ENGINE OWNER’S MANUAL VERSION 4. Secondly, the injector drivers on any MEFI ECU will support up to 10 injectors though I have been successful at driving a max number of 12 injectors. Also I believe the Ramjet isn't sequential fuel injection. Free shipping on orders over $200! (Lower 48 states) Free shipping on orders over $200! (Lower 48 states) Free Hi guys, been working on a little project for some of my boating buddies and could use a hand with the MEFI data side. In order to reduce the risk of Checked fuel pressure, etc, Has good fuel pressure, but injectors not getting pulse signal from MEFI 1 computer. 7L MPI engine includes a 5th generation ECM (MEFI 5 computer) which provides 15%-30% better gas mileage, built-in engine rev limiter, and added horsepower/torque over the 5. As far as BOOSTPOWER USA offers complete marine fuel injection ECM’s and related modules in which will interlink with most EFI CAN and NMEA 2000 data-linking inputs and outputs. Home Similarly, no multi-point fuel injection (MPFI) systems existed that were USCG approved. The fuel can be handled by either installing a return line in This manual provides essential information for servicing, maintaining, and repairing the 2001-2007 MarinePower 5. Page 4. In this video we took a trip to MSD to check out their new MSD MEFI 4 ECU software which is a pretty trick Included is the Adapter harness designed to plug into your existing engine wiring harness where the MEFI 4 ECU was previously connected, with wide Band sensor and self-Learning capabilities. 00. The MEFI 3's are great controllers and will run fine with the correct modifications to the calibration. 4L) / 502 cid (8. Unfortunately I'd be looking at a custom intake and I'd need to redo the whole fuel system from tank to injectors. A broken or loose TP sensor may cause intermittent bursts of fuel from an injector and unstable idle because the ECM thinks the throttle is moving. 7L and 8. With regard to automotive electronics, nothing ages Page 13 2003 Marine 2-2 General Description The Marine Electronic Fuel Injection (MEFI) system is equipped with a computer that provides the operator with state-of-the-art control of fuel and spark delivery. I have checked everything I can think of and I'm suspecting the computer, but Multi-port fuel injection intake manifold; MEFI 5 ECM computer; Stainless-steel flexible fuel lines (U. Quote; Link to comment. This kit includes brackets, sensors Well that has changed in the last few years as MSD has moved into data acquisition and fuel injection systems. (No Fuel Pump Operation) DTC 81 Fuel Pump Relay Circuit. 1L Diagnosis 5 - 1 Marine Electronic Fuel Injection (MEFI 4/4B) Section 5 Diagnosis This section will be used to perform diagnostic procedures on the Marine Electronic Fuel Injection (MEFI 4/4B) equipped Given the boats age the running rich may be a leaking fuel injector. www. 1L Electronic Fuel Injection [MEFI 4] MEFI 4 Tachometer It has 2x fuel injector drivers and derives timing from tach pulses. With the high voltage produced by the Delco Fuel Injection Wiring Harness Diagrams. Marine Electronic Fuel Injection (MEFI) Section 5 Port Fuel Injection (PFI) Diagnosis This section will be used to perform diagnostic procedures on the Marine Electronic Fuel Injection equipped engines. 0L - 5. 99. It is a crucial component in ensuring that the engine functions optimally and efficiently. Hooked up to laptop, no codes. MEFI 3 equipped models had no O2 sensor feed back for This complete 5. 596. Keep this service manual handy and use it often. 1Gi-F, 8. This kit includes all of the MEFI 4B ECU 1- Injector Harness 1 – Painless/InGenius Software CD and USB Key . The base plate of the distributor is equipped with two special vents to prevent any fuel vapors from igniting. Place the Codemate's switch in the OFF position. Intermitently, it is hard to start. throttle body is moved to the side of the manifold and the nose of the intake plenum is sloped (I assume) for better hood clearance. information. 7L MPI engine package is designed to replace most 1991 and earlier Volvo Penta 5. Page 5 Non-Scan Diagnosis of Driveability Concerns (No DTCs Set) . Injection électronique de carburant (EFI) du RAMJET 350 MEFI 3 à MEFI 4 Nécessaire de conversion 12499116 Multi-port fuel injection intake manifold ; MEFI 5 computer ; Remote oil filter kit; Stainless-steel flexible fuel lines (U. 7L Complete Engine Package FUEL INJECTION (1991-Earlier Volvo Penta Applications) in stock. An electric fuel pump provides the fuel at a constant fuel pressure. MEFI 4. Its a new more efficient controller for street use vs the 3 which was for marine use. View full document. 4L Ecotec LE5 with MEFI™ 5 ECU includes: Standalone There were communication problems when running. To use the Codemate as a MIL: 1. 4L MPI Bravo and MIE 7. Find. I have seen your system on the web site and appears to be geared towards big blocks. 3L Torque Specs 5. It is no longer a 350 Mag however, as it is getting an extensive internal make over. They don't bother calculating airflow or AFR. 1L engines get the new fuel pump module. File Type: PDF | 20. 7L Volvo Penta with a 270, 280, or 290 outdrive, then this package will work in your 4. Once a DTC is set, the ECM will use a This 5. Points engine Oil, Oil filter, Fuel filter, Oil and fuel filter - check the fuel breather - clean little screen just as the fuel enters the pump - it's in the fitting - replace the fuel filter - with paperclip in, check base timing is 10deg - DON'T check without the paperclip as that puts it into service mode - Mefi pro allows you to download the internal programming to your PC or laptop, change and save it. This kit is designed to be a complete system for fuel injection on all General Motors GEN III & IV engines with manual throttle bodies(non-throttle by wire motors). I am going to do more cable relocating tomorrow. This has been one of ASM’s most popular injection system for the past several years, and has been show cased in many street rod mags. For an easy, self-tuning EFI system, the ACES Killshot is an excellent choice. Time to do the job: about 20 minutes. Engine load is primarily determined by sensing the current engine speed and reading the manifold pressure via the manifold absolute pressure (MAP) sensor (this is similar to old-fashioned vacuum signal). 32 MB. The section describes system circuits and diagnostic tables used to diagnose the circuits. $400 for 1st hour and set-up $150 for each additional hour. Many of you have been looking for injector reference material to determine injector size, capacity rating, impedance, and the ability to cross numbers. Nov 6, 2013 I Borrowed a Injector pulsed diode light installed it on the fuel injector connectors crank the engine and there was no pulsing light, I have spark at the coil. 4 Ecotec Wiring Harness with Relay Pack and ECM. 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1. 7L Electronic Sequential Fuel Injection [MEFI 5] engine. Abbreviation to define. com. 00 $95. MEFI is defined as Marine Electronic Fuel Injection frequently. 6. Description . Fun Times Moderator. 7L sterndrive engine applications. If you have an existing 5. 2L Coil Harness. approved) Hi and low-pressure fuel pumps (U. This system was initially developed for marine use (MEFI = Marine Electronic Fuel Injection). You will need the Keihin injectors in your particular engjne. Jun 9, 2013 #5 MEFI stands for Marine Electronic Fuel Injection. $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY. I can think of no other engine controller that has more The real difference is the early ones had a different fuel regulator and vst,later ones had a better fuel cooler called "cool fuel" with shorter injectors and a mefi3 computer. Engine load is primarily determined by sensing the current engine speed and reading the manifold pressure via the manifold absolute RAMJET 350 Electronic Fuel Injection (EFI) MEFI 3 to MEFI 4 Conversion Kit 12499116 Getting Started Installation of this upgrade kit is straight forward; however, installation of the exhaust bung requires welding. It's an engine controller manufactured by Delphi Electronics. I stopped testing when I didn't see a fuel injector pulse and automatically assumed ECM. i www. 2L Electronic Fuel Injection [MEFI 3] 2001-2007 4. 7L GPH Scaling Affects the display of GM MEFI 1 & 2 fuel flow readings. Long cranking time and then it starts. It is compact, rugged, waterproof and can be mounted virtually anywhere. Injector Connector, 85-92 TPI, 93-97 LT1, 98-02 LS1, and many other applications Marine Electronic Fuel Injection (MEFI) Contents General Description. Click image to zoom. G. Unfortunately, it set for a very long time before I Find FORD 5. It discusses how the ECM uses engine speed and intake manifold air density readings to calculate the correct amount of fuel to inject. Product Reviews . Have you checked oil level lately? If more than you put in, that’s another clue. Marine Power JetPac [292-550 HP] Displacement Options: 5. Engine off & ignition switch off. 7L - 8. This new controller fits in the Technical guide for electronic fuel injection systems in marine engines. 1999 325 hp. High level would be fuel dilution. Ram Jet Fuel Injection Kit, with MEFI-4 Electronics Retro-fit fuel injection kit is calibrated for a 502/502 Chevrolet Performance engine and is the same as used on the Ram Jet 502 P/N 12499121 May be used on other Big-Block The document provides an overview of the service and diagnostic manual for electronic fuel injection systems with Indmar electronic control modules. Featuring 8 100LB/HR Fuel Injectors this kit is the perfect option for any build looking to make between 800-1500HP. 4L MPI Model. It may be used on other big-block applications by replacing the ECM unit with an aftermarket unit with the proper calibration. These are 32 pin connectors of two rows of 16 pins; these have a slight offset between the top and bottom rows of 16 pins. I did find that there is a late 70's Olds 350 port Free Shipping - Summit Racing™ MAX-efi 500 Fuel Injection Systems with qualifying orders of $109. 725 SOUTH LA CADENA DRIVE COLTON CA USA 92324. I would suggest checking your fuel pressure, it Either system would support sequential injection and timing control. Page 5 Aftermarket (Add-On) Electrical and Hi, I have been searching for a while for options to tune the Mefi 4B ecu in a Malibu boat. I am in Australia and would prefer not to send ecu away and attempted to ask I'd love to tinker with the fuel maps and spark curves in real time. The engine is an Indmar Monsoon 2 with MEFI 2 Fuel Injection. MEFI4 is equipped with a self-diagnostic system that helps to troubleshoot issues effectively. 472770 $590. txt) or read online for free. 7L MPI Vortec from 2003. We offer several options of sequential, batch fire, staged and input programmable ECM’s to control any type of marine engine product or power adder. In mid 98, Mercury changed to the Mefi 3 with a more standard shorty injector. 7550. 8K views The motor is in super condition but it has the old MEFI 1 controller. The MAP sensor if defective would cause the engine to run rich, it should be a 1 BAR sensor. Dealer says it's overdue. Introduction CAUTION To reduce the chance of personal injury and/or property damage, the following instructions must be carefully observed. Engine load is primarily determined by sensing the current engine speed and reading the manifold MEFI 5 Burn Instructions This package includes a MEFI5 Scan Box, a registration key, a USB cable, a vehicle interface cable, a CD ROM with drivers and engine software, and this instruction sheet. approved) Hi and low-pressure electric fuel pumps (U. 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 MEFI 4. Here's a basic look at how the sensors in the speed-density MEFI-4 fuel injection work. 2L engines and their components. This is the perfect set up for the more extreme build with multiple input and mefi 3 mefi 4 mefiburn and custom setups One of the best solutions for a modern approach to fuel injection on the Ram Jet 350 is the use of the LS1 PCM. DukeRhinoceros3342. TechMate Pro allows you to: MEFI Code octane levels down to 90. Menu Search. Leave the Codemate connected to the DLC and its switch set to OFF In this mode, the Codemate will act just as a dash-mounted MI The MEFI1/2 system uses the speed/density method to calculate fuel volume per each bank of 4 cylinders which is then injected twice each cycle. Don't think it's that. Non-Scan Diagnosis of Drivability You should be familiar with wiring diagrams, The Arizona Speed and Marine Superjet fuel injection system. When performance matters most, you can trust Marine power jet boat engines to provide the power This self-contained, hand-held diagnostic scan tool displays complete GM Ram Jet fuel injection system information allowing you to perform component level engine diagnosis like the pros. 7l Mefi 4 Engine Wiring Diagram - Free download as PDF File (. 428. 2L Carbureted and Fuel Injected (MEFI 1-2) Engines 1993-1998 5. 1GXi-E, all 8. Also, the problem seems to be related to temperature or atmospheric pressure, The dealer is recommending fuel injection service every 30,000 miles. The Mefi 4 ECM is designed to monitor and control various aspects of the engine’s operation, including fuel injection, ignition timing, and exhaust emissions. The secret is the industry leading MEFI 4 controller. Clearing Diagnostic Trouble Codes (Scan) diagramweb. 0, 6. Opening the throttle seems to help reduce the starting time. pdf), Text File (. Page 5 Aftermarket (Add-On) Electrical and injection system with the dependability and optimized performance of contemporary port fuel injection. The MEFI 1 controller and fuel injection/induction system will be used on the new mill. The Ram Jet 502 fuel-injection kit is complete and ready to go. 1- Crank Sensor Pigtail (24X or 58X) 1- Communication Cable This is different than throttle body fuel injection, in which there is just one or two injectors, fuel is injected above the throttle plate, and the intake manifold is "wet". This is because air and liquid velocities are not the same THE New Standard in Fuel Injection! Street to Race - From GM's factory COPO Camaro to NASCAR to your car! The distributor used on the MEFI equipped engines is designed for the marine/industrial environment. This manual can be used by anyone from a first time owner/amateur to a professional technician. 3, 5. It presents easy-to-read, illustrated instructions and step-by-step directions to ensure trouble-free use Page 143 5. Proper service and repair are important to the safety of the Here's a basic look at how the sensors in the speed-density MEFI-4 fuel injection work. non-feedback Mercury Marine MEFI 3 and later MEFI 4 ECU. University of Notre Dame. 1l engines, the MEFI 4 only offers the Batch firing order which means there are two injector drivers inside the ECM for all 8 injectors. The injectors are not interchangeable. How do I tune it? The only downside to the early Ram Jet was the open-loop-only engine controller, the MEFI 3 (multipoint electronic fuel injection, version 3). Total views 6. All fuel injection systems feature the same basic components: a device to determine the amount of air going into the engine (usually a ‘mass of air flow’ – MAF- sensor), an ECU (to determine how much fuel to add) and the injectors To connect the Codemate: 1. I did hook a fuel gauge up to the fuel rail. 4L Inboard. H. EFI Conversions - We also have been doing conversions since 1994 on all mechanical injection manifolds including Hilborn, and their 8 stack units for Ford Chevy, Mopar, and the 4-hole units for blowers Tehnicheskie Harakteristiki Sistem EFI MEFI MPI Alb 2 - Free download as PDF File (. with the crank trigger I could use my existing distributor less guts for spark distribution only. These settings are permanently retained and will automatically be recalled each time the Late ‘80s OE and some aftermarket multi-point fuel injection systems actually performed fairly well in their day but the software and electronics are now horribly outdated. 5/20/2023. Shop Fuel Injection Systems at Summit Racing. ECU controls and MEFI to Holley j1-26 467 dk blu fuel injector a driver j1-27 419 brn/wht malfunction indicator lamp j1-28 450 blk ecm ground j1-29 450 blk ecm ground j1-30 443 grn/wht idle air control (iac) coil “b” high j1-31 442 blu/wht idle air control (iac) coil “a” low j1-32 j1-6 485 dk grn/wht fuel pump relay control fuel pressure sensor CARBURETOR/MEFI 4 ENGINE OWNER’S MANUAL Includes: Rountine Maintenance • Troubleshooting Guidelines • Electronic Fuel Injection • Dealer Directory regulator or fuel injection system). MCM (Sterndrive) 429. MEFI™ LS WIRING HARNESS`S. So I am assuming the comm problem is noise and not a mefi problem. In this video we took a trip to MSD to check out their new MSD MEFI 4 ECU software which is a pretty trick Fuel Injector Reference. DTC 81 Fuel Pump Relay Circuit. Will this do much to keep my car in top performance? The cost is just under $200. FUEL INJECTION MEFI stands for Marine Electronic Fuel Injection. Jump to Latest 4. General Information. You enter the desired injector on time based on MAP and RPM. This engine package includes: 5. 2L Electronic Fuel Injection [MEFI 3] Service Manual . of torque. SERVICE MANUAL NUMBER 23 FUEL INJECTION SYSTEM TROUBLESHOOTING 90-861326--1 MARCH 1999 Page 5D-1 FUEL SYSTEM Section 5D - Fuel Injection System Troubleshooting Diagnostic Trouble Codes for the MEFI 3 454 cid (7. Use Scale Factor #2 when GPH Scaling, Screen Contrast, and Fuel Injector timesettings to be stored in the scanner’s non-volatile memory. This engine pack Which fuel injection system is best? The “best” fuel injection system largely depends on your needs. MEFI 1 - ECM Connector Chart for 454/502 Mag MPI and 8. Instrumentation Harness Diagrams. Vehicle/Engine Wire harness for Marine Power MEFI 5 fuel injection system. Coast Guard rules and regulations to minimize the possibility of fire or explosion hazard. approved) Oil pressure switch, oil sending unit, knock sensor, misc sensors ; Electronic ignition (Electronic distributor w/coil spark plugs, plug wires, etc. e. 7L engine is run, properly timed, and tested BEFORE it is shipped to you. It shows the electrical Marine fuel injection technology has come a long way since the introduction of General Motors MEFI-1 engine controller back in 1992. Fuel Pump Low/Open. The JetPac comes equipped with fuel injection and makes the perfect re-power or upgrade for your jet boat Ram Jet Fuel Injection Kit, with MEFI-4 Electronics This retro-fit fuel injection kit is calibrated for a 502/502 GM engine and is the same as used on the Ram Jet 502 P/N 12499121. 2L Electronic Fuel Injection [MEFI 1-2] 1998-2001 5. The Mefi 1 engines used a VST while the Mefi 3 engine used the cool fuel. 11 out of 5 stars ( 9 ) Michigan Motorz has the 5. From everything I can find about the MEFI 4 fuel injector firing order for the 8. This document provides an overview of speed/density theory and operation for MerCruiser EFI engines. 7L carbureted version. This cable is intended to be used with engines using GM MEFI 5 ECM’s. MEFI 5. HT32BSX115 Supreme Mariner. Check out our featured products online. Fuel injection Engines. 4s with the MC555 ECU, but if they did, interfacing the gauges might be an issue. 0/5. Site Menu. 3. Yes google mefi burn you will get a obd site that will burn a new tune for you. You're viewing: 5. Click to expand TunerPro User Forum :: View topic - Run fuel pumps with Tunerpro RT Here's a basic look at how the specific sensors in the Turn Key LS2 with its speed-density MEFI-4 fuel injection work. A hard failure in the TP sensor circuit should set either a DTC 21 or DTC 22. The newest GM systems bakesonline. Operating the LT4 on fuel below 90 Octane can result in engine damage and or failure! Such failure will not be covered under warranty! Electrical, ignition and fuel system components are designed and manufactured to comply with U. MEFI4 utilizes a Data Link BBC complete fuel injection system Dart tall deck tunnel ram with TB & MEFI4-A « on: October 14, 2018, 05:56:33 PM » BBC custom built complete injection system, this has been run on a 565ci that made 820HP, its built on a modified Dart tall deck tunnel Ram intake and has a large oval TB on the front with air filter, comes complete with full ENGINE CONTROLS & IGNITION Delco MEFI 5A electronic fuel injection processor • Speed density operation • Interfacing software & hardware available in the aftermarket Cable-actuated throttle • Electronic fuel pressure with 2. 0L - 6. If the engine is a 7. . 2. We have many Sniper options for builds going from mild to wild. When reference is made in this manual to a brand name, number or specific tool, an equivalent product may be used in place of the recommended item. 291. Texa Daf Dmci Mefi - Free download as PDF File (. It’s the perfect combination for a project vehicle, producing 345 hp and 396 lb. Use Scale Factory #1 for most engine’s. Diag on DAF truck The Ram Jet 350 fuel-injection system (PN 12498032) requires the MEFI 4 ECU and injector harness kit (PN 12499116). 7L – 8. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. ) 14" sterndrive Service Manuals 1986-1993 3. Late ‘80s OE and some aftermarket multi-point fuel injection systems actually performed fairly well in their day but the software and electronics are now horribly outdated. MAIN; ABOUT - Mefi pro™ Software FUEL INJECTION MEFI™ ECM. Fuel Sending Units; Sending Unit and Fuel Pump Combo for Carbs; Sending Unit Fuel Injector Connector used in GM vehicles and marine applications using the MEFI ECM : Products: OBD2 Scan Tools: GM OBD1 Cables: MEFI Scan & Tune: MEFI Scan 1-4: MEFI 5 Tune: including the MEFI harnesses, employed multiple types of fuel injector connectors. Electronic controls Fuel Injection Big Block and Ramjet ; Ignition Adapter Harnesses ; Engine Control Units ; Engine Parts ; Flame Arrestor and Filter Cartridge ; Fuel System Components . This kit is designed to test fuel supply and injection This manual provides detailed information on servicing and maintaining the 2007-2013 MarinePower 5. Performing routine,prev VINTAGE STYLE AND MODERN PERFORMANCE Chevrolet Performance’s unique Ram Jet 350 combines the classic look of the original Rochester mechanical injection system with the dependability and optimized Check out the MSD Fuel Injection MEFI EFI System for LS crate engines! This is a one stop shop for fuel injection solutions for your LS engine and is a fully I have a single calibration here for a 502 from a MEFI 1 MEFI controllers that I've tuned are different than automotive counterparts. B) Air Induction System. The rails were different as well. MEFI 2 MIE 7. To compare, electronic fuel injection (EFI) works with a similar air valve although it may be throttle controlled or controlled electrically. 0625” face and 0-100 psi range • Voltmeter with 2. Fuel pump turns on and 40 lbs showing on gauge. If you’re looking for a more customizable setup EFI Components - We can supply just about anything you may need such as ECUs, injectors, sensors, fuel system components, linkage,etc. 909. More fuel increases the pulse width for the injector(s). ) The J1 Connector J1-1 Injector Driver (cylinders 2,3,5,8) J1-3 Ignition Control (Ref. For those seeking a versatile fuel pressure tester that can handle a wide range of fuel injection systems, the Fuel Injector Pressure Tester Kit stands out as a top choice. 2 motors MEFI System Relay 19 J2 6 J1 32 J1 PPL 902 PNK 439 BLK 150 BLK 150 Fuse Block GRY 120 GRY ECM J1-32 FPRSENSE Fuel Pump BLK 150 PPL 903 S103 Ignition Feed Fuel Pump Relay Fuel Injector Cylinder #1 A Fuel Cylinder #4 A Fuel Cylinder #6 B A Fuel Cylinder #7 DK BLU 467 DK BLU 467 C A 11 J126 Fuel Cylinder #2 B A Fuel Cylinder #3 A FUEL INJECTION (MEFI) TROUBLESHOOTING AND REPAIR (MEFI 3 - 1998 Software) L510004. Fuel filter, Oil and fuel filter strap wrench. Oil pan plug wrench (or, as I use, a vacuum tank to suck the oil out through the dipstick tube) (if the job is the 5th annual service include the following) New spark plugs, Spark plug wrench. The newest GM systems offered by marine manufacturers pack more features, have more computing power and control engine performance more precisely than ever before. The AZ Speed intake manifold is basically the same as the GM but has the obvious physical modifications, i. The MEFI 1 BPW vs MAP and RPM table begins at 40 kPa and goes to 100 kPa in 20 kPa increments. For the test to work, it's more set up for the sequential fuel injection vs the Batch and Semi Batch Injection Fire System. Even though you now have the USCG-approved Sniper EFI System as an option for your new EFI System you're not quite out of the Mefi 4 is a type of engine control module, or ECM, that is commonly used in marine engines. 1OSi-B and the 8. Printer friendly. Ford did not make throttle body injection for the 1986-1996 model year range, at least not in any trucks. (No Fuel Pump Operation) DTC 81 Injector Driver A MARINE ELECTRONIC FUEL INJECTION (MEFI) DIAGNOSTIC MANUAL At the beginning of each individual section is a Table of Contents which gives the page number on which each subject begins. My 2016 Camry has 69,000 miles, and I've never had it done. I believe the harness runs to close to the spark plug wires in a few spots. You can make changes on the fly, real Well that has changed in the last few years as MSD has moved into data acquisition and fuel injection systems. 7L Vortec base marine engine (standard MEFI 4 - PCM Marine Electronic Fuel Injection (MEFI) Section 1 General Information Contents Clearing Diagnostic Trouble Codes (Scan) . 1 2 3 MEFIpro Scan™ 1. Ramjet 350 MEFI 1 Upgrade. 7, 6. (I am looking to get the connector type for this. MEFI 3 MCM 7. It will be used to correct Diagnostic Warning: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. 0L Service-Manual [MEFI 4] 8. The pick-up coil is sealed to keep out moisture and prevent electromagnetic interference. After playing around with some off This MarinePower MEFI 3 Service Manual offers essential servicing and adjustment procedures for 1998-2001 5. What I have noticed though is that there is another grey wire from the fuel pump that goes to the mefi. 0625” face and 8-18v range The unique Ram Jet fuel injection system stands 11 inches tall at its highest point and consists of a two-piece manifold/plenum assembly, eight injectors, a throttle body, and an updated MEFI 4 controller. 0L– 8. 2L MEFI 6 16 Pin Wiring Harness. MarinePowerUSA. S. 598. 6 software`s virtual Dashboard allows you to view sensor data such as IAC, TPS and 02 voltage in real time, keep an eye on your Boost Amount, Spark Advance and Knock Retard plus dozens more of the Mefi`s output signals. Pleasurecraft L190180 is a suppliment troubleshooting and repair manual for GM Marine Electronic Fuel Injection MEFI 2 with 1996 software. 7 MPI is based on a new Vortec small block, featuring MEFI-4, the latest in multi-port fuel injection technology from GM. With regard to automotive electronics, nothing ages faster than digital control strategies. 2 The JetPac is a Complete Jet Boat engine package. 0L and 5. It covers all the information you'll need to restore the Ignition and Fuel system's to there peak performance. Skip to content. Ram Jet Fuel Injection Manifold Kit MEFI 4 - PCM Marine Electronic Fuel Injection (MEFI) Section 1 General Information Contents Clearing Diagnostic Trouble Codes (Scan) . Sniper, the #1 Fuel Injection Conversion system has you covered with the Stealth 4500. From what i know the newer ones have 43 lb injectors Fuel injection Engines More Ramjet 350 Problems Engine was installed several years ago and started out as a MEFI 3 but was converted to MEFI 4 prior to my ownership. Rather than throw parts blindly at it, download the MEFI 2 service manual and perform the tests in the book. Fuel Injection Overview; Dual TBI; Dual TBI -140 Engine; Four TBI – 140 Engine Stagged Injection – Special Order; Turbo 150/180 HP; Fuel Sending Units. This complete 5. 0L or 5. 425. Before we discuss the computers on the Marine applications, let s discuss how computers use voltage to send and receive information. com Table of Contents Section 1: introduction Operating the LT4 on fuel below 90 Octane can result in engine damage and or failure! Such failure will not be covered under warranty! Electrical, ignition and fuel system components are designed MEFI. MEFI stands for Marine Electronic Fuel Injection. 4 MPI with MEFI-1, -2 or -3, then, since the ECU is mounted to the engine, and the engine uses a returnless fuel system, it's pretty much a drop in replacement for the carbureted engine. The controller is a MEFI™ 5 unit and is tuned for sequential fuel injection for easy starting, smooth running and great economy. Part Number: 809-12498032. 7L Electronic Fuel Injection [MEFI 4] Engine. Secure transaction: Preview . It has 2x fuel injector drivers MEFI (Marine Fuel Injection) Thread starter Marina Bum; Start date Jan 3, 2025; Marina Bum Well-Known Member. This MarinePower MEFI 3 Service Manual offers essential servicing and adjustment procedures for 1998-2001 5. Skip to content (951) 340-2624 [email protected] Free shipping on orders over $150 for Continental US orders! EFI Connections 3 Marinefuelinjectiontechnologyhascome a long way since the introduction of General Motors MEFI-1 engine controller back in 1992. C. I changed the coil out The all new 350 horsepower Ram Jet 350 from GMPP makes it easy to have electronic fuel injection on any vehicle originally equipped with a carburetor. Joined May 16, 2009 Messages 9,076. 3) Intake Valve(s). ECM. I don't think they made any 7. net 5. It seems that the brain of the system had some MEFI 4 - PCM ECM Diagnostic Trouble Codes The Malfunction Indicator Lamp (MIL) will be “ON” if the malfunction exists under the conditions listed below. I contacted mefiburn and was told to send ecu to him to be tuned, when I asked about purchasing software was basically told the ecu is locked and I have no other options than to send ecu to him. Complete Standalone Engine Wiring Harness for 2. Is there a difference between the EFI systems used in the '93 / '94 / '95 Prostar 190? I was looking at a potential '94 Prostar project with Fuel Injection (not the LT1) and a Powerslot transmission. Page 13 2003 Marine 2-2 General Description The Marine Electronic Fuel Injection (MEFI) system is equipped with a computer that provides the operator with state-of-the-art control of fuel and spark delivery. These motors have the MEFI 1 system and there is one calibration file for the 5. 2L) Engines Code Number Connection Conditions Comments 14 ECT high Minimum run time (10 sec) Sensor output high MEFI-3 ECM Connectors: The front of the MEFI-3 ECM has two connectors, J-1 and J-2. Watersports & Boating Products, Parts & Accessories Also includes a returnless single fuel line hook-up for easy installation. It includes a table of contents listing the topics covered such as fault code 1998-2001 MarinePower 5. Connect the Codemate to the DLC. 7 MPI makes over 330 horsepower. 7L Electronic Fuel Injection [MEFI 4] 6. com 3 1. Summit Racing SpeedCard - learn how to get 15% back up to $150. It works well for what it is, however, the lack of precise timing control creates a few issues: 1. Jan 3, 2025 #1 This is a long shot but do any wordlings out there have access to some MEFE software or have any for Sale? MEFI is the Marine Software for GM Based Power Plants like all common rain fuel injected Vortec, LS and 8. -ft. approved) Oil pressure switch, oil sending unit, knock We keep changing and have lots more information comming your way! We specialize in MEFI Tuning Performance Boats based on the popular MEFI1, MEFI2, MEFI3, MEFI4, MEFI4A, and MEFI4b (Marine Electronic Fuel Injection) ECU platforms used widely by MerCruiser and other Manufactures. Q&A . Fuel Injection Systems, Sniper EFI, 2300, Throttle Body, Black, 2300 Flange, Injectors, Fuel Pump, Pressure Regulator, Harness, Tuner, Kit Part Number: SNE-550-850K 4. The Ram Jet 350 crate engine kit includes a MEFI 4 engine controller, wiring harness and a detailed instruction Mastercraft Fuel Injection Question 03-05-2014, 06:05 PM. KKN 1234567. 2L LS3 MEFI 5 Wiring Keith, it's a MEFI 1 controller on a Merc 350 Mag EFI/MP. It joins between the fuel relay and the fuel pump and branches off to the computer. Anyone with experience with this ECM? My boat engine is a Volvo, but basically it is a GM 5. Excellent for single dual installation purposes, the 5. Product Q&A View Now. These are password Contact our Technical Sales Team to discuss the perfect system for your Engine Management Needs! Email us at [email protected] with some details on your vehicle, engine and and must-have features and we’ll make sure you’re The Captain’s Choice 5. The MEFI ECM brings automotive reliability, low emissions and fuel savings to the marine sport engine. What I am working on is converting some proprietary CAN data from different ECU's to modern J1939, NMEA 2k, and other common protocols for use with digital displays, chart plotters, and modern gauge clusters. Add to cart. The MEFI module uses RPM and MAP to select data from a FiTech Fuel Injection is the leader in fuel injection systems for classic cars and trucks. 3l 5. Setup instructions are included, making it a simple “plug-and-play” installation. Joined Dec 8, 2005 Messages 10,083. 472570 $65. 0L/302 Fuel Injection Systems and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Hello all. Our services are available both for the serious competitor and the weekend MARINE ELECTRONIC FUEL INJECTION (MEFI) DIAGNOSTIC MANUAL At the beginning of each individual section is a Table of Contents which gives the page number on which each subject begins. This requires new part numbers for all the fuel Fuel injector pulse width tables Spark advance tables Rev limits Eliminate limp modes; A few points to mention: There is no need to upgrade an older MEFI 3 based Ramjet system to a MEFI 4A based system. This does not cover any engine mechanical information. KKN. 0L – 5. Can anyone tell me if the MEFI 3 to MEFI 4 upgrade, (GM part # 12499116) A fuel injector positioned right above each inlet valve is way more accurate both in volume and velocity than one positioned so far away (before and above the throttles). 423. 429. Staff member. This document provides a diagram and description of the fuel injection system for a V8 engine. By modern, I mean electronic automatic transmission control (4L60E and 4L80E) and optional electronic (drive by wire) throttle. Quantity . Here are the warm running parameters vac 15 fuel 42 MEFI Marine Electronic Fuel Injection User manual View Add to My manuals 287 Pages The MEFI4 is a marine electronic fuel injection system that provides precise fuel delivery for reliable and efficient engine performance. Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics The all new Go Fuel Force Fuel Mini Surge Tank makes the upgrade to fuel injection even easier! Like the other Force Fuel Systems, the Mini is fed through a low-pressure mechanical pump (or electric) saving the need to modify the MEFI Fuel Injection Fuel Pump Module 05 8. General Emissions Warranty Coverage 2) Cold Start Enrichment System. Really don't care for Included is the Adapter harness designed to plug into your existing engine wiring harness where the MEFI 4 ECU was previously connected, with wide Band sensor and self-Learning capabilities. The fuel pressure regulator has been moved from the fuel rail to the discharge side of the high pressure pump at the module. pdf. Some repositioning at least gives me some connectivity. Fuel Pump High. MEFI. The MEFI ECM allows the use of Chevrolet Performance Ram Jet Fuel Injection Manifold Kit (less electronics) Small Block Chevy with Vortec Heads. 1L Regulator LP Pump HP Pump Starting with the 8. abbreviation; word in meaning; location; The MEFI 4 will be closed loop and have O2's the 3 doesn't. Low) 2011 Marine Electronic Fuel Injection (EFI) Service Manual This manual provides information on the diagnosis, the service procedures, the adjustments, and the specifications for the marine engines. I only found this because my fuel Jet Boat Engines For the most demanding jet boat requirements, experts turn to Marine Power to deliver performance and value. Poor efficiency due to MEFI's lacking knowledge of valve opening; when in doubt inject more fuel! 2. 2L MPI. Because the marine engines cover a broad range of uses, some of the instructions, figures, or references contained within this manual may not pertain to every customer or The ECM calculates fuel delivery based on throttle valve angle (driver demand). 7/6. Other times, it starts right away. wgpnxjvlpfmptimeundznatibkqfargqrkfkuvgzlqj