DTC P2270 Acura
Rear Secondary Heated Oxygen Sensor (Secondary HO2S (Bank 1, Sensor 2) Circuit Signal Stuck Lean
Rear Secondary Heated Oxygen Sensor (Secondary HO2S (Bank 1, Sensor 2) Circuit Signal Stuck Lean
Description
The rear secondary HO2S (bank 1, sensor 2) output voltage is 0.650 V or less. The execution time is once per driving cycle and the duration time is 36.3 seconds or less. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
Cause and Solution
Poor connections or loose terminals at the secondary HO2S (Sensor 2) and the PCM
Video Guide
Diagnostic Info
- DTC Code: P2270
- Brand: Acura