JEMZ272

My ECM took a dive on me last summer. I recall finding a well known/respected reprogrammer on-line last fall that would rebuild/reflash it or sell you a new one if they could not fix it. Unfortunately, I can't find them now. Does anyone know of a company that "remanufactures" ECM/ECU's???? What about sells used ones???
I have tried searching my part number on-line, but nothing shows up with the exact match (863618-7). There is also another number that appears to be a serial number (859610) however, that googles to be for an outboard.

low_psi

Whipple reprogramed mine. However it wasn't "Bad". It does appear they have a repair service for them. www.whipplesuperchargers.com. You might find a used one on ebay. I know I have done searches in the past (out of curiosity) and found a few there. They are pricy.... Also do a search for Mercury 555 PCM. That might net you some more search results.

bajahammer21

any mercury mercruiser authorized dealer should be able to do it as long as theres nothing wrong with it and as long as you have stock tuning

Pliant

http://www.mefiburn.com/

GM Part No. MEFI Type
16159919 MEFI-1
16189069 MEFI-1
16220371 MEFI-1
16234539 MEFI-1*
16210729 MEFI-2
16237009 MEFI-3
16237019 CEFI-3
16236999 MEFI-3*
12489488 MEFI-3
12489493 MEFI-3
12569494 MEFI-4
12575479 MEFI-4a
88962717 MEFI-4a
88962718 MEFI-4a
12584052 MEFI-4b
12597744 MEFI-5
12607802 MEFI-5a

Its more than probably a mefi, give those guys a call there are quite comptent

bikercrze1

I had an issue exactly like this two years ago with my MEFI 3 ECM on my MX 6.2 EFI and I am sorry to be the one to tell you this but good luck on finding a replacement. Mercury really needs to step up on this as the aptions are not great for the fix. The guy who did the work on my motor has a good rep in Jacksonville, Fl his name is Kevin Brady. Through a giant stroke of luck when mine went bad at his shop he had a spare laying around that he used to diagnose 5.7 MPI's and he said the software to reprogram them costs like 25 grand and only a few people in the country can do it. Luckily he knew a guy and sent it off to be retuned for my engine peramiters. Now the bad news is unless you find someone selling one on ebay or elsewhere the only other option is purchasing the Mercury replacement ECM which costs $3,500.00 not to mention the entire wiring harness has to be redone. Good luck I hope you are able to find one!

tazdevil

try here http://www.psepmarineparts.biz/store...cm_modules.htm

BUP

Your model takes a PCM 555 controller by Motorola. AKA triple nickel. Not one MEFI set up will work for this stock app. There is 3 different PCM offered for that that year range. I will say again up here all parts ordering to get the correct part in the marine world from the OEM is all related to serial # not year model. Year model helps to narrow it down but a lot times does not give the exact correct part. Serial # is always required.

Most electronic parts once bought buy your odering are non refundable so keep that in mind. Anyways retail on your PCM 555 range is around 2200 bucks going off the top of my head. I can get them for you if needed. If you buy a used one - I would only buy from a very well known source because I see many who always want to save a buck and the controller is either wrong for there app or does not work or has been remapped causing running issues. I see this more times than not from used units. Yes you can get a good used one but sometimes its very hard.

dereknkathy

mefi 1 on ebay for 255 bucks with harness. I guess it doesn't work for you. but somebody will need it. pm me I will find auction and send link. it isn't mine I just saw it.

Keith Atlanta

Just buy a used one from Whipple or Raylar. There is also a guy in Arizona who does a lot of 496 work...