ChuckD
Fri, February 12th, 2010, 11:26 AM
When you turn to KOEO how long is the CEL supposed to stay on. Mine just comes on and right off real quick. I am getting codes P0344 and P0236 so I got some work to do this weekend.
Power Hungry
Fri, February 12th, 2010, 11:35 AM
It really depends on the processor. OBS trucks will usually blink and then go right out while newer trucks will blink, stay on a few seconds, and then go out. As long as the light blinks when turning the key on (and by blink, I mean a really fast single blink), everything should be cool. If it doesn't come on at all or comes on solid (no blink) then there's a PCM issue or chip connection issue.
ChuckD
Fri, February 12th, 2010, 11:44 AM
Yeah its a really fast single blink. I just noticed a differance because in the Expy it stays on for a second then goes out. Thanks Bill.