P1279 INFINITI Air Fuel Ratio Sensor 1 Circuit Slow Response Bank 1
Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 1– Air fuel ratio (A/F) sensor 1 heater Bank 1– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas