Intermittent Failures

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. 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 intermittent failure goes away. However, corresponding fault code will be retained in PCM memory. If failure does not reoccur within a certain time frame (50 ignition on-off cycles), corresponding fault code will be erased from PCM memory.

Intermittent failures can be caused by faulty sensor, bad connection, or wiring related problems. See INTERMITTENTS section in appropriate TESTS W/O CODES article in ENGINE PERFORMANCE section:

H - TESTS W/O CODES - GASOLINE
H - TESTS W/O CODES - CNG