Quote:
Originally Posted by b3lha
Here's the simplified version:
Each sensor is tested several times a second.
One bad result is usually ignored, but if you get several bad results in succession the ECU will decide there is a problem and trigger the light.
If you then get a whole load of good results without any bad ones then the ECU will decide the problem has gone away and turn the light off again.
|
Thank you. I figured maybe it was the budget, no-name, 87 octane, petro-byproduct-laced "gasoline" with which I topped the tank before commencing a 2-hour highway run Sunday night that had my engine scratching its head. Haven't seen the CEL again.
dcb