intermitten check engine lite on 1997 Isuzu Trooper

Check engine light goes off and comes on and it seems to be related to when I put gas in the car. (Not always but too many times to be a coincident). Any ideas on how my putting gas in the car can affect the check engine light going on or off?

by in Virginia Beach, VA on April 12, 2010
1 answer
ANSWER by on April 12, 2010
The engine light alert you about a fault in the emission control system, the gas cap not closed properly could cause the Check Engine Light to go off. To better troubleshoot the problem I would recommend you to retrieve the diagnostic codes stored on your vehicle's computer.