Subject: check engine light on, then off IP: Logged
Message: my check engine light came on, and it turned out it was just a cracked evap hose. so i replaced it, but now when i turn the key to the "on" position, the check engine light comes back on. then when i actually start the truck, the light goes off. i reset the pcm numerous times, and the same thing happens. what is going on?
Subject: check engine light on, then off