Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 2– Air fuel ratio (A/F) sensor 1 heater Bank 2– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas leaks– PVC– Air Flow Meter When is the obd code mean? The response (from RICH…