DTC P0156 Infiniti
HO2S-22 (Bank 2 Sensor 2) Closed Loop Fuel Control:
HO2S-22 (Bank 2 Sensor 2) Closed Loop Fuel Control:
Description
Engine started, IAT sensor input from 14-122ºF, fuel level over 25%, vehicle driven at over 20 mph while in closed loop, and the PCM detected the HO2S signal was excessively high or low, or it detected the HO2S signal did not reach the maximum or minimum
Cause and Solution
HO2S connector is damaged or looseHO2S signal circuit is open or shorted to groundHO2S is damaged or it has failed
Video Guide
Diagnostic Info
- DTC Code: P0156
- Brand: Infiniti