hi
P2A00 NISSAN
Air Fuel Ratio Sensor Circuit Range/Performance Bank 1 Sensor 1
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 pressure
-Fuel injector
- Intake air leaks
Tech notes
If the P2A00 code is set after a sensor is replaced, check for exhaust leaks and perform the mixture ratio self-learning procedure
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