Possible causes – Air fuel ratio (A/F) sensor 1– Air fuel ratio (A/F) sensor 1 heater– Fuel pressure– Fuel injector– Intake air leaks When is the code detected? The output voltage computed by ECM from the A/F sensor 1 signal
Possible causes – Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1– Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection– Fuel
Possible causes – Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1– Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness is open or shorted– Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection– Fuel
Possible causes – Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1– Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted– Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection– Fuel pressure– Fuel
Possible causes – Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1– Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted– Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection– Fuel pressure– Fuel
Possible causes – Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1– Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted– Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection– Fuel pressure– Fuel
Possible causes – Faulty front O2 Sensor 1– Exhaust leak– Intake air leaks– Fualty Mass Air Flow (MAF) sensor– Fuel pressure– Fuel injector When is the code detected? The ECM will set the P2A00 code if it detects that the
HONDA Technical Service Bulletins for P2A00 code 2003 HONDA ACCORD ELECTRICAL SYSTEM 2003 HONDA ELEMENT ELECTRICAL SYSTEM
P2A00 ACURA – Rear Air/Fuel Ratio Sensor Bank 1, Sensor 1 Circuit Range/Performance Problem
P2A00 FORD – O2 Sensor Circuit Range/Performance Bank 1 Sensor 1