The following procedure does not specifically address the troubleshooting of the oxygen (O2) sensor circuit
but provides information relating to symptoms and other DTCs that need to be examined or resolved that may cause
this DTC to be displayed.
1. Common problems that may cause lean codes:
* Sensor wires contacting exhaust manifold pipe
* Vacuum leaks
* Exhaust leaks
* Low fuel pressure
* Contaminated or spoiled fuel
* Dirty injectors or faulty injector driver
* Improper ECU grounds at battery or frame
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.