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Damaged ECU?
Posted: Wed May 04, 2011 11:10 pm
by Redneck Wolf
Yesterday, my alternator went out.Picked up a new one today, and now my check engine light comes on randomly, and my tachometer is all over the place. I went and got the new alternator tested, as well as the battery, everything is fine. So I was wondering, could it be something in the ECU? or could it be something simple, like a damaged sensor?
Re: Damaged ECU?
Posted: Wed May 04, 2011 11:53 pm
by BSOD2600
Find out what codes are stored:
http://legacycentral.org/library/literature/codes.htm then clear them and wait to see what comes back. THEN start troubleshooting the problem(s).
Re: Damaged ECU?
Posted: Thu May 05, 2011 3:05 am
by Jessekrs123
Sounds like a similar issue I had.
My tach would go crazy sometimes, and my car would randomly shut off.
It turned out to be the ECU ground in my engine bay was loose. Found a new home for it, snugged it up with a bolt and I have not had the problem since.
Re: Damaged ECU?
Posted: Thu May 05, 2011 5:34 pm
by Legacy777
The ECU ground is located on the back of the intake manifold on the driver's side. You can see it in this pic.
http://main.experiencetherave.com/subar ... G_4042.JPG
