91 century 3.3 trouble

[00zq8sonoma]

About a month ago I was driving the car to school on a warmer day about 55 degrees outside when it started to hesitate, it eventually died. I managed to get it restarted and drive for a few more miles where it would die again and not restart. The check engine light came on and the temp light. I have just started driving the car again as it started and will run fine in cold temperatures. It is now about 10 degrees out. What would cause the car to just die in warm temperatures and run perfect when it is cold? Is it just a sensor or something simple? Any help would be appreciated


Well I checked the codes in the computer and got a code of 42. Found what that meant from another post but have no idea what it really means is wrong.

Talked to a few people and found that I should replace the ignition control module. How difficult is this to replace?

[destroythemartyr]

Hey man, if you are still having the problem, and found it that it probably isnt actually the ignition control module, like I just did. I found that it cound be the crank sensor.

http://www.obd-codes.com/forums/viewtopic.php?p=10804

I'm not sure if I can link to other forums but... There ya go.

Let me know if you have fixed it, and what the problem actually was.

[richtazz]

A code 42 refers to the Electronic Spark Timing control circuit, and can be a nightmare to track down and correct. It could be a bad ignition module, ECM, crank sensor, cam sensor (if equipped) and any of the related wiring between all of the above. A code 42 is tripped when the EST signal does not change when the ECM commands it to. Since the ECM uses many different sensors to determine proper timing advance, any one of these sensors (or problems with the wiring between them and the ECM), can cause this code to trip. OF all these components, the ignition module is the one that will normally fail without tripping another trouble code, but so will the actual control circuitry in the ECM. You could try taking your ignition module to Advance or Auto-Zone and have tehm bench test it for you. Make sure they run the test enough times to get the ICM warm to the touch, as yours seems to be temperature related.

[bruceallmighty]

had the same problem with an 89 buick.put a used ig mod in worked fine 4 6 months.probs arise again, this time no code 42 . got another used mod, got 3 months outta that one,the yard a new place this time gave me another used no charge,got code 42 that time.if this is getting tedious to you imagine me lol.any way i recently purchased a brand new mod to the tune of 225canadian all seems well since.as rich said a difficult prob to diagnose.but get your mod tested !they are easy to remove