19. Jan 28, 2012 · Jan 28, 2012. Jun 3, 2011 · Jun 3, 2011. Re: Mercruiser 5. Turn-around time is 1-3 days. May 27, 2013 · 51. Re: Distributor Ignition Sensor Mercruiser 5. Photo is a stock photo and may not fully represent the item listed. . A shorted tach will kill spark. com/forums/attachments/general-q/283227d1182567957-led-mefi-codes-code03. and the shift position will remain in the gear location the engine was in when the fault was. Jun 7, 2016 · Model year 2006 Engine, s/n is 0W624841 at 400 hours. The system will limit the engine speed to within the allowable range. Experience the Whipple difference in drag racing, circle track, and boat racing with our 1992 - Up EFI engines: 1992 - 2006 (GM MEFI equipped) Adapter #94005 2007 - 2009 (ECM-07 equipped) Adapter #94026 2008 - Up (ECM-08 equipped) Adapter #94023 or 94029 Seven Marine. Revise Search: All Models > 4. If your fuel fuel pump is missing the ground, the problem is in the wiring harness. 1 HO. 1s. (16 mm) mounting screws 5 Use with flat lifter engine 6 Use with roller lifter engine 7 With clip down distributor cap 8 With screw down Aug 18, 2015 · this fault mode occurs, the Guardian strategy will limit throttle to 65% of available power. 0 MPI is part number 885176 We first diagnose the unit. 0 MPI SN OW003759 with Bravo 3 SN OW108118. The harness contains a replaceable fuse that will blow and prevent the shorted IAC from damaging the PCM (ECU-Computer). Runs good at wide open throttle. Fuel Delivery Issues. <br Aug 5, 2019 · To ECM Term. AllDodge said: Disconnect the tach (gray wire) and see if it starts. Oct 30, 2015. Plug in the scan tool to the ECM. When I rev up the engine, either in neutral or under load, the engine works fine. All these problems have solutions to solve them. We are running a MERCRUISER ECM MEFI-3. Oct 18, 2010. Repairs generally range between $100 and $600 vs a replacement for $2000 to $3000. Mar 22, 2009 · The Mercruiser 4. Malfunctioning thermostat, blocked/damaged water pump, insufficient coolant. Available to Order: Usually ships within 10 days. Fuel Pump Problems. Do not use replacement electrical or fuel system components that do not comply with these rules. How to hook it up: 1) Ignition key “OFF” 2) Remove the cap from the Data Link Connector (DLC) Oct 14, 2015 · Situation: ECM (sent to OBD and confirmed its toasted) Boat: 2000 Shamrock 246 wa Engine: 5. The first number, labeled a SPN, identifies the location of the problem and the second number, a FMI, identifies the type of problem is occuring at the location. Apr 10, 2019 · hello, new poster here. 04-28-2019, 11:46 AM. I dont think you should have anny problems with that engine in this type of boat. How do You Clear the Codes on a MerCruiser? Mercury MerCruiser #36 ECM 555 Diagnostic - Service manual [PDF, ENG, 18. The cost for this is significantly less than the cost of a replacement module. I have a 1995 Mercruiser 4. This goes smoothly everytime. <br />An engine serial number is the best way to go with any marine engine. After testing, I was told by my mechanic that I need a new ECM (motor is a MCM 5. We are r "Here is the problem. Inch. Plug the cable leads into the TPS sensor. And it depending on the HP on this engine, but if its a 250HP it should do around 30 knots. 7/6. Throttle body injection. What I think I'd recommend is when you get your boat back from the shop, every time you get it back, do some basic checking on it yourself before you try to go on the water. Poor acceleration. CodeMate User Guide. Still running OK, oil pressure looked fine, temp fine, couldn't find an obvious explanation. *Fast turnaround time. 4 MB]. Jul 23, 2008 · Boat Info. Single Replacement harness to use with 221-1090. 065 volts. It will work on most 1993 to 2000 marine EFI systems with the ten pin Data Link Connector. In this case, we will process a partial refund for the difference. Cause. 1 Failed Self Diagnostic Cycle. 4L L-29 V8s Cast iron block w 4-bolt mains. We are so confident in our rebuild service and Mar 9, 2023 · It cranks but the engine does not start. 1) I can run the engine at 1800rpm for two hours (did it) with no alarm. Get on a plane, and within 10 minutes I get two loud "beep" engine alarms every minute. 7 efi Ignition problems? Is that EFI a throttle body, or MPI? Makes a big difference in troubleshooting. Re: Chevy 350 Engine/Mercruiser 5. A "CKT HI" fault means that the ECM/PCM is seeing a 5. We first diagnose the unit; if it’s not repairable or no problems are found, it costs $200. Below are the facts of the case as I can best tell-. 7L MPI MIE EC. The tacho signal is generated inside the ECU and not as a result of the pulse to the coil driver. Aug 17, 2010. 045-. In a search, I stumbled across this info: This is the issue but I don’t have a part number match. The ECM uses inputs from sensors throughout the motor to monitor operating Jun 2, 2007 · "Here is the problem. 7l plus EFI (350cid) This inboard engine says seamaxx on it. Clean/rebuild carburetor, adjust idle speed and mixture, check for vacuum leaks. We will fix your computer upon arrival Oct 30, 2015 · Messages. 7 Problems!! I hope the gauge was wrong and you actually had oil in there. 2). Engine had run perfectly for about 3 hours on the first outing of the summer season (good oil Aug 14, 2012 · Re: mercruiser ignition control module? with a carb, the ECM controls ignition advance, knock control, rev limiter, and shift interupt with an alfa drive. (800)737-0915. Oct 4, 2023 · Before I dive into all the problems let’s have a quick overview of the 5. It shuts the engine down suddenly when the computer gets too hot (not the engine temp). The LT1 engine has three different coolant sensors. I have a 2002 5. Engine serial number 0M033393. I swapped side to side and the problem moved. The collector has a 3 catalyzer design (new design for Merc in 2011) that runs very hot. In the part list two options are available: 864273T07 – ECM Engine Control Module. On my 2002 Rinker 342 Fiesta Vee, there were 4 fault codes that always reported but the boat ran just fine. 50. 4 MPI (310 propshaft HP) V-drives. Founded by the innovative Art Whipple in Fresno, CA, our journey from racing circuits to leading supercharger technology reflects a commitment to excellence. 7 MPI - Check Engine Code Reset. This is a repair & return for your Mercury Mariner ECM ECU PCM. Apr 12, 2019 · Apr 13, 2019. Current timing measurements indicate a change from 26 deg at 2500 RPM down to 14 deg at 3600 RPM. Since 1992 the GM Delphi MEFI ECM Controllers have been used in a wide variety of applications, including: Marine - MerCruiser, Volvo Penta, Crusader, Indmar, many boating applications. I thought that the ECM or main power relay MUST be losing power. 7. #12. The boat idles good. The symptons are: When I start the engine from cold, I allow the engine to warm up at idle. jpgQuestions? Comment below. I have a 2002 Mercruiser 5. 0 (or nearly 5) volt signal and a "CKT LO" fault means that the ECM/PCM is seeing a 0. Turn the ignition ON, but do not try to start the engine. I have a MX 6. 3, 5. 4,269. Inspect and replace the fuel pump. Below is some information about Sticky and non sticky faults. Similar to ECM 555 engines (4. Maybe some of you will find it useful. One very important aspect when using these – Not every fault code it reports is an issue. Like, being hard to start the boat, sounds from the engine, misfiring and backfiring of the engine, leaking of fuel, engine not getting enough fuel, no sparks, etc. HARNESS ASSEMBLY, Extension (Lube Bottle) (1 required per assembly) 84-812733A 2 - Harness [ More info ] $22. Very random shut off. Like someone turned key off. Feb 14, 2001 · 64. The warning horn is activated any time engine speed exceeds the maximum allowable RPM. Took boat back out, ran great, until I ran Sep 7, 2010 · Okay here is one for Sherlock Holmes: I have a 2004 Mercruiser 5. Ask Your Own Boat Question. When an ECM starts to go bad, it can cause all sorts of problems. The advantage of the harness is to prevent a failed IAC from damaging the PCM, which is $2,000+ to replace. capecodcruiser said: That myth of auto reset is just that, a myth. 7 Mercruiser common problems. "I have a 3 yr old 350 Mag MPI w/alpha one outdrive. 00 for. If it’s not repairable or no problems are found, there will be a charge of $200 plus return shipping costs. S. if the ICM goes bad, it simply stops working and the engine quits running. The part I need exactly is a MEFI 3 Delphi ECM model number 16237009 but a member on these forums has told me that he has a MEFI 3 Delphi ECM but its model number is 16236999. #1. 7 tbi efi engines, starboard runs perfect but port engine took a dump on me and doesn't want to start. 3L EFI Mercruiser serial number OL 034997. I have swapped parts from the other engine and have also bought a new Quicksilver IAC and TPS and have taken the throttle body off and cleaned it and replaced with new gasket. What the ECM Does. No Programming Required. I was called in on this boat due neither engine has spark (ignition) and I found ne Diagnose your over 130 of heavy equipment with diagnostic software for engines, excavators, dozers, skid steers & more. The only thing I noticed was prior to the Jun 4, 2020 · Jun 3, 2020. Oct 10, 2012 · Nov 8, 2020. 2 Fuel Pump Problems. There is nothing in the ECM that removes the ground for the fuel pump. Explore the legacy of Whipple Superchargers, a family-owned and operated powerhouse since 1987. May 27, 2019 · If you own a late model Mercruiser engine in your boat, you're almost guaranteed to run into one of these common problems. 79. With advanced engine control systems now standard on nearly all gasoline inboard and stern drive engines, you need a service tool that pinpoints problems quickly and accurately. 1. I am in need of some suggestions following an engine will not start but will crank situation I am encountering. Disconnect the battery to prevent any electrical mishaps during the replacement process. Disclaimer: This chart applies to MerCruiser engines with PCM 555, including 496 MAG and 8. #15. 865008T04 – ECM Engine Control Module, freshwater cooling mode. 0 EFIs 2001. I don't have any experience with older ECM and am amazed if a motor that old would have issues. Compression test Good Fuel pressure test good Scanned with diacom no codes all parameters in the game new plugs cap and rotor Replaced the exhaust water shutters Cleaned all debris from exhaust. Page 5 Page iv View and Download Mercury MerCruiser ECM 555 service manual online. For more information, please check the official service manual. All faults are classified as either Sticky or non-Sticky. 2012 - Up Outboard EFI engines: All models Adapter #94023 or #94029 GM RamJet Crate Engines. Now the engine is called Cummins Meruiser. To resolve fuel pump problems in the Mercruiser 5. Mar 17, 2005 · Re: Mercruiser 496 HO - Difficult Diagnosis Wiggled, poked, twisted, shook, tapped, you name it, I did it. Warranty. Temperature, oil pressure, and everything else looks fine according to both the gauges, and the SmartCraft monitor. 0 MPI engine, the most effective solution is to replace the faulty fuel pump. Malfunctioning fuel pumps can cause fuel delivery issues, resulting in poor engine performance or even engine stalling. ) engine coolant temp overheat, 2. There is a Mid-Range misfire at around 1500 RPM. Sticky means that the fault, once set, will continue to show up as active, even if the circuit or problem has corrected itself. Not the ground. This is a repair service for a 2005 - 2006 Mercury Mariner PCM with a 3. There are a few different ways, but May 27, 2021 · Tein Mercury 7. The engine started and run fine at dock. Connected a graphing/recording multimeter to the power supply for both, when the problem occurred there was no interruption of power. Regularly inspect and clean electrical connections, ensuring a tight and corrosion-free connection. #8. Here are the quick details: —24 foot Sea Ray that had a 350 Mag MPI. Apr 28, 2019 · 2000 Mercruiser 7. When MerCruiser uses an oil pressure switch for the fuel pump (on carb engines only) they use it to control the power. 221-1091-1. 2011 Tahoe Q7SSi, 5. install a new set of plug wires, including coil Nov 10, 2023 · Well, there are many problems that you can face while using a mercruiser ignition coil. Milky substance inside oil cap. We professionally repair your Mercury PCM or Mercury ECM for models Mariner, Milan and Sable. Coast Guard rules to minimize risk of fire or explosion. Apr 30, 2007. Due to their importance, all types of motor vehicles rely on ECMs, including carts and boats alike. *Power from the 50-Amp circuit breaker mounted on the engine passes through the main May 9, 2018 · I sold the original 5. 7 and the computer must be for the 5. This chart is for informational purposes only and is not necessarily applicable to any model. Oct 18, 2008 · 16. com! stocks many of the Mercruiser electronic control modules. #2. If I'm not mistaken, the injector for a 5. Jun 13, 2017 · From searching the web, I found that the ecm's used by Mercruiser are produced by New Eagle. This list is specific to PCM-555 engines (496 MAG and 8. Oct 17, 2008. « Previous. Aug 5, 2019 · The ECM’s language for communicating the source of a malfunction is a system of Diagnostic Trouble Codes (DTC’s). of W9010VI1 and manufacture date of 08-10-2004 because it would not be compatible. I had a new Feb 14, 2020 · Mercruiser Catalyst engine wire harnesses explained ,Freshly Rebuilt 5. Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship. "Have I got a mystery for ever. 7l ones. Oct 30, 2016 · Supposedly Mercruiser has a bad, global problem with the above gas engine manifold and collector that many of us have. Re: 4. 0 (or nearly 0) volt signal. This Part has options, please click the button below to order. Hello, I have twin 1998 mercs 5. Jul 14, 2021 · Rough idling. Engine: 2003 Mercruiser 350 Mag MPI. The problem appears at the water temp, raw water pickup, the engine will not warm up, I can run the Nov 19, 2023 · The ECM controls the engine’s performance and can be a common source of problems. These engines are initially intended for the California market and are designed to meet California emission requirements. Delphi MEFI ECM Repair. May 4, 2023 · Problem 1: 3. 3 mercruiser ignition control module -HELP. "I have a 3 yr old 350 Mag MPI. The scan tool reads live engine data including oxygen sensor After watching the Smack resetting the ECM and getting a huge increase in mpg, I started looking up how to reset the ECM. Cost of Fixing The cost of fixing a Mercury 4 Stroke that won’t start will vary, depending on the type of problem and the parts that need to be replaced. Now, they are having problems with the manifold and collector leaking. Put it in neutral and it immediately starts up with no hesitation and out of the hole no problem. WE ARE IN NO WAY AFFILIATED OR SPO MerCruiser PCM-555 / ECM-555. ECM Mercruiser 78-8M0059248. If you are doing an engine rebuild, engine upgrades, or maybe just trying to find your engine running issues, ECM testing is one way to help diagnose your issues . We need to buy new ECM. 5. It will not run over 3000rpm We have done the following. Overspeed could be caused by incorrect propeller pitch, engine height, trim angle, etc. 16. Aug 14, 2020 · Aug 18, 2020. Rough idling. Mercury Verado 225 ECM PCM 88924689T, 8M0021687. #22. Apr 12, 2019 · The purple wire from the key switch goes the ECM for wake up activation power then the below happens, Mercruiser ECM 555 ignition system operation: *When the ignition key is turned to the on position, the ECM 555 grounds the Main Power Relay control circuit. Have a 2001 Baja with a 496HO. 58. Engine overspeed indicates a condition that should be corrected. Dec 24, 2021 · Dec 24, 2021. Do not replace your ECM unless you are SURE that The TKS ECM electronically opens the enrichment valve for varying lengths of time – the colder the engine, the longer the valve remains open. Twin Mercury Marine marinized 7. Problem is it cuts out for no apparent reason. 3L MPI Alpha / Bravo > 0M615000 - 0W309999 > Electrical Components. 2L MPI INBOARD EC - 5. Application: Mercury 40HP, Mercury 50HP, Mercury 60HP, Mercury 90HP Mar 28, 2019 · Hey folks, my FIL's marine mechanic has informed him that the problem with his mercruiser is the ECM. Hello to everyone, New to this forum, proud owner of a Chris Craft Scorpion 210 with a mercruiser 350. Where Used. 0L Motorola ECM 555 with the part no. It doesn't seem to backfire, it doesn't drop down in rpm more than Jul 28, 2010 · 3,105. 2000 - Up EFI engines: RamJet 350, RamJet 502 Adapter #94005 TurnKey Engines Here are the codes: https://www. 7l it cannot be programmed to work, you will also need to swap the injectors for the 5. The boat runs fine once you get above 1200-1300 rpm but below that I never know if it will die when I back down on the throttle. May 14, 2019 · General Q & A - Mercruiser 5,0 mpi- rough idle/stalling ecm 555 - I rebuild a 2004 mercruiser 5,0 MPI and I'm having problems with bad idle (too high or stalling). ECM's are expensive and do NOT go bad very often. I have a 4. 2. 1S), but the basic features are similar for ECM-555 engines Mar 30, 2009 · Mar 30, 2009. Here is some history: Its in a 22' walkaround coupled to a bravo III drive that used to Jun 2, 2014 · 496 HO Problems - Help Please. 0L engine. May 29, 2012. [/FONT] The seawater pump pressure switch is the most common fault. Mar 26, 2017 · Mar 27, 2017. Billy6567 said: First, I'm Billy and I am a new to the site. 1S. All fresh water operation. He replaced my original ecm (delco model 16234539) with another he had in his shop (delco model 16189069) just to have it in the water Diacom Marine is a powerful Windows based diagnostic tool that is revolutionizing marine engine service. Took it out yesterday and it ran great, however after about 3 hrs, an alarm sounded. It idles fine, runs great at mid-range rpm (3000-3800), runs great at higher rpm (3800+) occasionally if engine is cool. If you do not see your particular vehicle listed, please call us at 800-547-2049 to discuss repairing your module. #6. Part Options. ) sea pump PSI low. It starts and idles great. At Simon Performance Technology, we proudly stand as the world leaders in the testing and repair of Mercury Marine, Mercury outboard, and Mercruiser Engine Control Units (ECUs). The Mercruiser 8M6005749 ECM is the main computer for various Mercury outboard motors, including the 250 HP DTS, 250 HP FourStroke, and 250 HP ProXS. I am a pretty good auto mechanic so I performed a tune up on the old 305. Recording Jun 3, 2021 · However, they are gold when trying to run down problems with the ECM’s on our EFI engine set ups. Maximize Mercury Mercruiser performance with the Jaltest Marine Diagnostic Tools. Here’s a step-by-step guide: Prepare the boat: Ensure the boat is safely docked or on a trailer. If you have confirmed spark on all plugs, you have fuel pressure and compression, it should fire I would think. This means I am dumping a lot of fuel and the plugs verify the diagnosis. (32 mm) mounting screws 4 Use with 5/8 in. *We first diagnose the unit; if it’s not repairable or no problems are found, it costs $220. With an unwavering commitment to excellence, we have set the industry standard for precision, quality, and innovation. 7 Mercruiser EFI Stern Drive, Bravo III. I traced the wiring all the way back to the ECM (J-14)and it was good. About the marine Motorola Mercruiser ECM. 1999 Sea Ray 330DA Twin 7. *LIFETIME WARRANTY. Electronic Control Modules (ECM) Sterndrives. —Haven’t touched the props or Bravo III drive (same as before repower) Jul 14, 2022 · This video is on how to test a MEFI 1-4 ECM to determine if it has failed. Ho SIA Electronics has many other repairs available. This includes MerCruiser, Volvo, Crusader, PCM, Indmar, and a few others. You could ground out the tacho signal, and the engine would still fire. My ECM is a MEFI-4 with a different part number. PN: 8M0089619, 8M0048235, 8M0059789, 8M0110469, 8M0113386,8M0054846, 8M0088062, 8m0076393. "Have I got a mystery for everyone! I've got a 350 Mercruiser mag mpi motor here (2000 era) that is missing about 80 to 100HP. Apr 30, 2007 · New member. 0 Mercruiser Carburetor Problems. 4L - 454 Cu. 2009-Up MerCruiser PCM-09 (Visteon) support. May 28, 2023 · Problem 6: Mercruiser 6. It controls the motor’s significant systems, including the engine, ignition, fuel injection, and charging system. That was the first year for the 8. 2 Running Rough. 5,310. Ser# OM351757. 74 and IAC at 0 with idle of 900RPM and the other engine is TPS Sep 1, 2014 · As Thumper stated, the solid alarms and a couple more listed below. Jun 26, 2010 · Messages. Overheating Problem. Recognizing the symptoms, potential causes, and solutions can help rectify this problem. *Free return shipping. Product Details. Plugs, rotor, cap, wires changed fuel separator, even changed the coil and module assembly. 2) It only starts to sound when the boat is on a plane (RPM 3200 +) Apr 1, 2016 · Engine specs: 5. ) exhaust manifold cooling temp overheat. 6L. Above 3,000 RPM, the TKS ECM does not affect ignition timing May 28, 2023 · Quick View of Mercruiser 8. If the ECM is faulty or out of calibration, you may need to replace it or have it professionally serviced. Engines. Sometimes also called an ECM (Engine Control Module), these modules can be damaged by failed ignition coils and spark plugs. Messages. After a short period of use the tacometer needle will oscillate wildly usually between 4500 & 5000 revs although I normally run the engine at cruising about 3800 - 3900. The pinouts of both units are excactly the same as described in the mercruiser service manuals. Your Price: $2,430. Oil or coolant leaks around head/block. Friend had the same problem on his boat with the engine failing after a few hours of running, but his was a 2001. 2L MPI INBOARD EC - 6. To test your EFI system you will need special tool #91-823686A2 QuickSilver Scan Tool $1,170. The ECM Marine Mercruiser Motorola 0501, 865926 is a component commonly used in marine applications, specifically in boats equipped with Mercruiser engines. May 27, 2013. Stalling. Solution. I tried to replace ECM from other 383 (owned by neighbor – no freshwater cooling). Can anyone provide the timing angle for the 2000, 2001 454 MPI at the following: idle (700), 2000, 3000, 4000 RPM. On first time out it ran smooth but seemed lacking on power. Not on the ECM555. 0, 350, 6. Application: 2003 mercury EFI 225 Ot688171. The motor has recently been rebuilt and runs great except for the lack of power. "J1-14" S116 A B Not Used Fuel Pump Relay Fuse 15A ABPNK 339 Fuel Pump Relay 85 30 86 Fuse Block ECM Fuse 15A Fuse Block C D BRN/ WHT 419 BLK/ WHT 451 ORN 440 DLC Connector FGHJK EDCBA From S117 3 J1 10 J2 27 2 J1 ORN 461 Diagnostic "Test" Terminal Malfunction Indicator Lamp (MIL) Serial Data ECM Ground ECM Ground Master/ Slave Jun 7, 2017 · I have a 97 four wins with a 5. Initial diagnostic said bad starter, not enough cranking power. Clean/rebuild carburetor, replace air filter Mar 28, 2019 · Hey folks, my FIL's marine mechanic has informed him that the problem with his mercruiser is the ECM. The Engine is a VM Motori LI 706 Bulidt in Italy and Belgium. 865836 with a serial no. 2L MPI MIE EC. Sep 25, 2005 · Re: Mercruiser 5. Off-Road - Sand rails, race cars, industrial engines, and more. 1 Problems. ) low engine oil pressure, 3. Get a good schematic and a volt ohm meter and follow the path from key on hot to the computer could be a bad fuse or it has dirty connections. Jun 17, 2003 · 4. <br />Your problem could be anything from a dirty boat bottom, bad prop, to an ECM meltdown. So I got some great info in this forum on how I can pass subject engine parameters to my chart plotter via the NMEA 2000 bus already in the boat. Electrical System Failures. Jul 21, 2008. Diacom Marine unlocks the computing power of your notebook PC Electrical, ignition, and fuel system components on Mercury Marine products comply with U. Coolant Sensor Problems. Delco style ignition systems use the ECM. Bad ECM Symptoms: Mercury Mariner. 3 also with no spark. Mercury Marine ECM 8M0175147 Repair Service will be returned fully reconditioned, tested, and ready to be installed back to the exact engine it came off, saving you the time & expense of having a new ECM programmed to your boat. I have been having problems at idle and have spent a large chunk of money trying to figure it out. The Fox Marine MEFI-3 gateway seems to be a solution which passes Fuel Flow Rate, Coolant Temperature, Alternator/Battery Voltage, Engine Run May 29, 2020 · The ECM controls and directs your entire drivetrain (unless there is a serrate transmission controller). This is an old post but I have the exact same issue on my 8. Sep 3, 2010. Our repair service includes testing each PCM on an actual vehicle before it leaves our facility. I have replaced the oxy sensors, both fuel pumps, changed oil, dist. MerCruiser introduced the PCM-09 ECM module on their 2009 model year engine's equipped with catalytic converters. The readings on the engine with the high idle are TPS at . Just repowered with a 2020 Mercruiser 383 MPI and am having performance / excessive fuel burn problems. The Wires, Plugs, Distributor Cap, Rotor, and Fuel Filter have all been changed but the problem still exists. I have replaced the coil and disconected the shift interrupter. triggered. Regularly replace fuel filters according to the manufacturer’s recommendations. Many problems with MEFI ECMs can be fixed with a repair of your ECM. 7 test run on ground, how to hot wire late model 14 pin with additional harnesses. 3. Set the scan tool to TPS voltage (or connect DVM) then set the adjustment screw for the lowest value & still touching the throttle arm stop. [FONT=&quot]1. Compression checked; perfect on all 8 cilinders Engine fires up right away, runs for a couple of seconds @ +- 1000 rpm and returns to (bad) idle. ) engine overspeed, 4. ECM stands for Engine Control Module, a computerized system that controls and monitors various aspects of the engine’s performance. **This is a Repair & Return for your part. 7 Volvo penta which goes into limp mode. Once the engine warms up, if you try to maintain an rpm higher than 4000 it starts cutting out. Mercury v8 pro xs. For giggles get a can of electrical cleaner and some dielectric grease and one by one pull a connector and clean it and put back together with dielectric. 2L MPI, it appears that I am running cold based upon my scan tool. Clogged pump or pump failure. #7. Mechanic recommends a new ECM, but the quote was $4,000 for the part and labor to install the thing. I bought a 350 MAG Bravo ECM0713 dated 02-27-2013 (8M2001111) (8M2003678) (A30004IS) bar codes. 0l mcm Serial #OM336918 471 hours Maintenance kept to the letter. The two beeps per minute alarm is going off. The shift function will not be available when called for by the ERC when the above fault. This may be . † Purchase ICM / ECM units from a local MerCruiser dealer 1 Distributor mounted ignition amplifier 2 Exhaust elbow mounted ignition amplifier 3 Use with 1-1/4 in. K. 4. 0 MPI Monterey. Oct 19, 2010 · Jul 27, 2005. Here is an example of wave foam testing by us on a MEFI 3 ECM to show that we will work on a variety of different ECM units, including Mercury MerCruiser and Volvo Penta. Single beep every 2 or 3 minutes, (or so). Engine will run all day at low speeds. The DTC’s are identified by two sets of numbers. In their product range they offer the ECM-555-48 (ECM48) which is called ECM555 and the ECM-555-80 (PCM80) which is called PCM555. Oct 12, 2023 · By the way it is Twin Mercruiser 5. I'm keen to get it repaired or buy one second hand. 00. Part #94008 : Read Our Latest EFI Connections newsletter! Read about the latest systems from marine engine manufacturers and keep abreast of upcoming changes in engine technology. 4L MPI MEFI-3 ECM. It appears that the rev limiter is activating prematurely and randomly. Problem. pdf Hi there, I have a problem on my Mercury 2003 40 HP elpto ot638252. I believe the ECM controller is at fault. Aug 24, 2005. The TKS ECM also advances igni-tion timing – Below 3,000 RPM the TKS ECM advances idle timing 5° until the engine reaches 104°F (40°C). Contents. My regular mechanic's engine computer code Nov 21, 2022 · When it comes to operating a boat, one of the most frustrating and difficult components to troubleshoot is the Engine Control Module, or ECM. thanks, Joe. ground the ignition sensor to the same stud on the block as the negative battery cable. Our ECM repair service even has a one A list of Mercruiser engine alarms and fault codes has been widely posted all over the webby-net, so I reformatted it into a 1-page table that I can print and keep on the boat for reference. Been fighting this problem for 2 1/2 years with no change at all. First is a coolant level sensor that is responsible for illuminating the low coolant light on the dash when coolant levels are low. Motorola Mercury Marine ECM 5550204 Repair Service will be returned fully reconditioned, tested, and ready to be installed back to the exact vehicle it came off, saving you the time & expense of having a new ECM programmed to your machine. module, plugs and wires, ECM, TPS, The throttle body assy goes into limp mode and shuts down one side of the injector before it planes out. Also known as the Engine Control Unit, or ECU, the ECM monitors your engine to ensure optimal performance. In this issue: - Sterndrive / Inboard Direct Injection Apr 7, 2010 · Apr 7, 2010. Aug 24, 2005 · Sep 8, 2004. the black flakes in the fuel would be my guess as the cause of your problems. My IAC follower is up on the counts almost double 80+ average @ idle. check to be sure you have a good, clean ground for the module - do not connect to the same ground as the sensor. 2 inline 6 sylinder engine got nothing to do with BMW. Clean/rebuild carburetor, replace spark plugs and wires, check fuel pump and filter, check ignition system. Aug 5, 2018 · This home made code tool works every bit as well as the one I paid $50. May 20, 2023 · Solution 1: Fuel Pump Replacement. Jan 28, 2012. Replaced and now don't have fuel pulse at injectors, disconnected fuel rail at carb and shoots plenty of gas. Crate Engines - Ramjet 502, Ramjet 350, LT1, LS1, LS2, LS6, LS7, Ecotec. Symptoms Engine sputtering or hesitating during acceleration Aug 19, 2009 · No it is not possible, you can use the system and the harness, but the knock sensor must be for the 5. <br />Sounds to me like your mechanic (agent???) is a parts replacer when you need a troubleshooter. We CAN work on these: between the sensor and the ECM/PCM is open or shorted. All sensors are normal. I have recently purchased a 2004 5. offshoreonly. Use the fault code scanner to ensure smooth operations on the water. 7L EFI). Engine Problems. Web Store / Online Ordering. 0L MPI Engine. 0 MPI Mercruiser with less than 5 hrs. oz yj hq lq od kv dk aa vy ca