CEL and Short Term Fuel Trims

[Steve 986]

To follow up on my CEL problem. We removed the idle air control valve and replaced with new, the one we put on was not cracked but was a used one we had. Now at 250 miles with no CEL! Kind of interesting, the new valve raised the idle a hair and the ST Fuel trims are still somewhat high at idle but no CEL and Long Term Fuel trims are still low. Hoping this lasts more than one tank of gas!

Thank you for all the input!

Steve

[blue62]

Originally Posted by Steve 986

To follow up on my CEL problem. We removed the idle air control valve and replaced with new, the one we put on was not cracked but was a used one we had. Now at 250 miles with no CEL! Kind of interesting, the new valve raised the idle a hair and the ST Fuel trims are still somewhat high at idle but no CEL and Long Term Fuel trims are still low. Hoping this lasts more than one tank of gas!

Thank you for all the input!

Steve

Well that makes sense.
I have a 2000S so no idle control valve, so I never think of it in relation to vacuum leaks.
Sounds like you have it sorted have fun with it.