I found a ECM for my car at a yard for $35 bux so i'm going to pick it up but do I need my MEMCAL or will the one from the donor car work? I don't know what car they are out of but I typed in all my specs and it found 5 of them so they must be right. ALso I have a multi-meter (a cheap one) How can I test the ECM? Thanx in addvance.
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Try YOUR memcal, since your problem was with the ECM unit itself, right? You can try the memcal with the new ECM, if its the exact same engine/transmission (ie 3.1/4T60) then I think it would be fine. Memcals are super easy to change so not a big deal. Try your old one first.
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Well I just back from the local yard and got myself a ECM and altenator for 60$. The ECM was out of a gp and it ran so they took the ECM out for resale so that should be good and they said they test all the alts that come in so that should be good too. I guess if they keep them all nice and neat and cataloged and stuff they must work or they would just leave them in the car. OH yeah there was a 90 4 door there the same color of mine but with the SE effects so I might pick them up, it would look funny without the side skirts .
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Originally posted by GRANDFURYAlso do I have to remove the black cover to get at the MEMCAL?
I think you will need to use your old memcal since you have a 2.8 and the 90 has a 3.1 correct? If its still giving problems you can try the 3.1 memcal I don't imagine it could hurt anything.
check out these links for pics and info:
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Well I changed out the coolant temp sensor and the MEMCAL I couldn't get my ECM out of the car the harness would not coroperate so I just put in the MEMCAL from the ECM for the yard it looked alot better than mine and the car runs fine now starts right up seems to idle alot better , BUT when at a complete stop if I hit the gas to get moving the car almost dies and then catches and works great and sometimes at WOT the car seems to surge And the fan still does not turn on. But the car idles better and quiter but has no where near as much power as it did. SO if I put the wrong MEMCAL in would my car still run? It feels much better at idle now but WTF is up with the surgeing, I didn't move or knock anything either so it's not that. Is it ture that these are systems of a bad cat or EGR? If my thermostat was bad do you think that would cause the fan not to turn on if it stuck closed? Thanx guys.
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