ignition control module question
TECH Veteran
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Some people have swapped them around and were seemingly ok. Other people have reported issues doing so. I would not go out and buy one that is for a different year, but if you had one already laying around, you could give it a try.
Can't give a broad answer, but specifically from my experience with my '96:
Service engine light was on when I bought the car, yet ran fine. ICM had been replaced recently. I later found out from the previous owner the replacement ICM was from a '93 car. So, everything ran fine, but the diagnostics weren't happy. My thought...don't use an OBD1 part on an OBD2 car, or vice versa, unless at the very least you want to stare at an SES light. That being said, I am keeping the '93 ICM in the car for an emergency roadside spare.
Service engine light was on when I bought the car, yet ran fine. ICM had been replaced recently. I later found out from the previous owner the replacement ICM was from a '93 car. So, everything ran fine, but the diagnostics weren't happy. My thought...don't use an OBD1 part on an OBD2 car, or vice versa, unless at the very least you want to stare at an SES light. That being said, I am keeping the '93 ICM in the car for an emergency roadside spare.
