1990 Engine Control Module (ECM) can fail

The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

Affected Model Years

This issue affects model years 1990, 1991, 1992, 1993, 1994, 1995, 2000, .

15 people reported this problem

  • 1990 180,000 Miles
    It acts like it runs out of gas. I am not sure if this issue can be related to the fuel pump or the IAT Harness. Once i put gas in it it will run for about 100 miles (it did in the beginning - now it is down to 55 or so each period of time) It will simply stall while driving and refuse to start until i put more gas in it. I have been running the odometer tracker so i know how far i am going, because at first we thought it was a gauge issue. The amount of miles is getting lesser and lesser. I see the ECM and PCM are mentioned often in the webpages that i looked up the Codes that the Check engine light is throwing. I also smell gas intermittently inside my vehicle.

  • 1990 100,000 Miles
    Transmission is shifting at higher speeds than it used to. I had two new injectors installed and it started this shifting problem after the install. I read some transmissions use vacuum pressure to decide when to shift. Could this be the problem?

  • 1990 122,000 Miles
    Cranks (Turns over) But Will NOT start

  • 1990 34,844 Miles
    When check engine light comes on. It sounds like the car is bout to shut off, it's hesitant an the car shakes. Its even cut off while driving a few times. Once the check engine light goes off the car runs perfectly fine