90 automatic L98 issues
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1st Gear
Joined: Aug 2021
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90 automatic L98 issues
Trying to help a buddy out, ive got a 1990, that has some weird stuff going on.
occasionally will start right up and idles fine. sound clean no misfire. revs great and does its thing as it should. the car seemed like it had some odd shift points however.
the other 80% of the time, it will misfire at idle, run rich sputter kick and occasionaly die.
so now after new injectors, regulator, coil, map, vacuum lines, were still getting the same issues.
tried a ECU from FS1 and had worse symptoms. not sure if that was a faulty replacement part or what but the "NEW" ECM never synced up proper.
im thinking ECM still but i need pointers in the right direction.
occasionally will start right up and idles fine. sound clean no misfire. revs great and does its thing as it should. the car seemed like it had some odd shift points however.
the other 80% of the time, it will misfire at idle, run rich sputter kick and occasionaly die.
so now after new injectors, regulator, coil, map, vacuum lines, were still getting the same issues.
tried a ECU from FS1 and had worse symptoms. not sure if that was a faulty replacement part or what but the "NEW" ECM never synced up proper.
im thinking ECM still but i need pointers in the right direction.
