Intermittent Failures
WARNING: This page is about a different car, the 1995 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
Intermittent failures may cause MIL to flicker or stay on until the intermittent trouble code goes away. However, the corresponding trouble code will be retained in PCM memory. If related trouble code does not reoccur within a certain time frame, related trouble code will be erased from PCM memory. Intermittent failures can be caused by a faulty sensor, bad connector or wiring related problems.