DTC P2A03 Infiniti
Air Fuel (A F) Ratio Sensor 1 Circuit Range Performance
Air Fuel (A F) Ratio Sensor 1 Circuit Range Performance
Description
NOTE: On V6 and V8 engines, this applies to Bank 2. The output voltage computed by ECM from the A F sensor 1 signal is shifted to the lean side for a specified period. The A F signal computed by ECM from the A F sensor 1 signal is shifted to the rich side for a specified period. To judge the malfunction, the A F signal computed by ECM from the A F sensor 1 signal is monitored so it will not shift to LEAN side or RICH side.
Cause and Solution
Air fuel ratio (A F) sensor 1 Air fuel ratio (A F) sensor 1 heater Fuel pressure Fuel injector Intake air leaks
Video Guide
Diagnostic Info
- DTC Code: P2A03
- Brand: Infiniti