Incredible 2004 Chevy Tahoe Check Engine Light Ideas. Read evap system, small leak detected. A couple weeks ago, i changed out the spark plugs after the truck flipped to 100k.
This is for fuel trim bank one, next ecm has detected a rich or lean air/fuel ratio condition in engine bank two. This free video provides the steps to diagnose and clear a check engine light on a 2003 chevrolet tahoe ls 5.3l v8. Web 2004 chevy tahoe check engine light came on.went to auto zone and this is the readout:
