IroczCamar0

I have an 86 iroc 305 TPI, i was driving and all of the sudden the check engine light was flashing, it was almost like it would pulse a few times, stop for a second or two and then continue, as that happend the car began to not run so good, it felt like it was getting fuel and then cutting out and it would continue to do that back and fourth. Eairlier in the day Before this happend i check to see if there were any codes and it flashed 12 3 times so there was no problems, but after this happened i try to check the codes and i get nothing, no flashing at all. My theory is that it has something to do with the ecm or the chip inside, any thoughts would be great thanks.

bcmag

definetly sounds like ecm failure.try tapping on it w/key on w/screwdriver handle and seeif it reacts.....stalls ,light flashes,fans come on etc...............

xX89RSXx

iTrader: (1)

Usually when it flashes there is a misfire. That would explain the way it was running.

bcmag

im pretty sure no misfire detection in 89.definitely true for later models though

IroczCamar0

yea its actually my 86 but yea i dont think it can detect misfires either , i just need to know if it is indeed the ecm, i dont wanna buy one and turns out not to be the problem, yea and it wont start, just cranks but it will start with some starter fluid but run with the light flashing and runs like garbage.

bcmag

also take a good look at ecm power connector wire near battery.orange w black tracer?