helo guys this is my first post here.i'm from poland. for about 6 months i have wird problem with my 89 camaro. when car is cold everything running great.but when hit 150* it dies. it's happend very often. and start immediately without problem and again dies after when i start it up for several times everything works fine until next drive when engine get gold and after hot. i done already new + and - to ecm and this doesn't help.timing is ok and yesterday i set IAC and still i have this problem.it's very anoying when i driving in traffic. i don't have EGR and coolant fan switch but i have manual switch, ECM doesn't shoes any codes. please help!!!

 

Do you have access to a scantool?

 

i done it before. my friend was scanning (GM Scanner)during the ride, and it's doesn't show any errors or wird 'things"

 

It's either your ignition control module or the pickup coil inside the distributor. When the electronics is getting hot, it will shut it down. If you turn it on and let it run, just sit in the car and watch the tach. Just prior to it shutting off, I bet 3:1 that you'll see a slight spike in your tach but no corresponding increase in engine RPMs just before it dies.

I just went through this same thing.

 

sounds like the ignition control module. When it heats up it'll basically overheat and fail due to lack of that thermal grease stuff underneath it.

 

i can't stand my car anymore it's not ignition control module or the pickup coil, i notice today that spark is until engine die but injectors stop when engine is dying for milisecond and start again but engine is dead anyway, i really don't know what i suppoust to do (sorry for my english)

 

i would like to swap ecm but i don't know if ecm from 1988 firebird manual (ECM number 1228063)will be fit to my camaro 1989 automatic (ECM 1228746) just for test?

 

How do you know it's not the ICM or the pickup coil?

 

The ECM's you listed aren't interchangable. And need a little clarification. You have spark, correct? Meaning if you dump fuel down the throttle body the engine will run as long as you dump fuel down there, right?

Did you recently run it to empty? If so it might be your fuel pump.

 

i change pickup coil and ICM from working firebird tbi. the spark are ok. but today i plug in ses light because prevoius owner took it out motherfuc...... and now throw code 33 and 54 but anyway is wird because before i connect gm diagnostic computer and it doesn't show any codes and the car was dying like now. i ride close to empty for about 3 months, before was almost always full

 

today ECM was restarted and doesn't show and codes, engine didn't die, but i will have to go for longer trip.

 

I with Gunny, ingnition module, though almost half the time the pick-up coil crap out too, especially with high mileage GM's.

 

i don't know what i can do more? it's still dies when hot. i even replace ecm...

 

Does it only die at idle? How does it run otherwise? Bad ignition module will cause the car to run like total crap or not run at all. If it runs well under throttle, then the ignition is probably OK. Lets see if we can figure out what the problem might be before tossing more parts at it. It might just be something simple that we're overlooking.

 

it's die even when i hold throttle. it's doesn't matter if park or drive. and doesn't matter how fast i'm going i can even stand. i replace ignition module, pickup coil from working firebird tbi. coil as well. ecm was replaced.map sensor to .it's run normal until die. but when i finally start it, it's still works fine... but only die when is hot do you think vss can do it? because i see code 24. and in rpo codes i have E5Z : SPEEDOMETER ADAPTER (DELETE) and E9Z : SPEEDOMETER KEY (DELETE) i don't really understand this codes

 

today i unplug 02 sensor and it's stop dying. do you think o2 sensor can be the reason? tommorow i will check again to be make sure.

 

Well that's weird. When you say "unplug" did you actually unplug it from the ECM or did you just remove it from the exhaust manifold?

I don't think anyone would recommend driving around without an O2 sensor with any kind of electronic fuel injection system.

 

How about a plugged catalytic converter.

 

i don't have catalytic converter.

 

Did you put the grease on the other control module when you swtiched them?

 

no i didn't. but where should i put this grease? and what kind of grease? the car dies when want go to close loop. but i'm not sure. what could be the reason?

 

When you look at the control module, on the bottom you'll see what looks like a stainless steel plate. There is a dielectric grease that needs to go on there prior to you putting the module on the distributor. If you've installed the other one without it, it is possible that you could kill this ICM as well.

 

i didn't remove only ignition module, i swap everything include pickup coil and gear

 

i still fighting with this please help

 

do you have any more ideas?