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 Post subject: ECU Problem
PostPosted: Wed Nov 21, 2018 12:16 pm 
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Joined: Wed Nov 14, 2018 3:17 pm
Posts: 7
TIPEC membership: 8147
My 1987 3.2 keeps cutting out - randomly. I've changed multiple sensors, AFM, etc etc etc but it continues to exhibit the same problem. Cuts out randomly, will not restart for 10-20 seconds, then fires up and runs fine for anything from 50 yards to 50 miles. I noticed yesterday that if I pull on the harness where it plugs into the ECU, that the car will restart immediately, literally turn the key and the engine will try to start but the instant I pull the harness it fires. I've done this at least 10 times now which makes me think it must be the ECU.

I've pulled on the individual wires with the engine running, checked the big plug etc and and cannot make the car cut out. I've also gone into the ECU and re-soldered a couple of suspect joints but is there something in there that is known to fail?


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 Post subject: Re: ECU Problem
PostPosted: Wed Nov 21, 2018 10:52 pm 
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Joined: Mon Oct 12, 2009 10:17 am
Posts: 284
Location: Newark Notts
TIPEC membership: 5518
Does sound like an ECU issue. There are many specialised shops that will test and repair your unit. Try googling Porsche ECU repair. One such outfit, which I have no connection whatsoever with is :-

https://www.ecudoctors.com/porsche.html

It may be worth connecting a diagnostic tester to your car if you know someone local to you that has one, that way you may be lucky enough to have a diagnostics readout detailing the issues with the ECU to forward with the unit to the repairers.


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 Post subject: Re: ECU Problem
PostPosted: Thu Nov 22, 2018 2:31 pm 
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Joined: Wed Nov 14, 2018 3:17 pm
Posts: 7
TIPEC membership: 8147
Thanks Alan I'll give that a try.


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 Post subject: Re: ECU Problem
PostPosted: Fri Nov 23, 2018 3:13 pm 
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Joined: Wed Nov 14, 2018 3:17 pm
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TIPEC membership: 8147
I re-soldered about 25 joints and put the ecu back in. I'm now 16.4 miles without a breakdown which coincidentally is the working title for my autobiography.


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 Post subject: Re: ECU Problem
PostPosted: Fri Nov 23, 2018 4:17 pm 
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Joined: Thu Jan 01, 1970 1:00 am
Posts: 5523
Location: Rochester, Kent
TIPEC membership: 911
:lol: good to see you’ve kept your sense of humour.

Well done for getting it sorted, fingers crossed.

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