# P2271 on the 2007 Acura TSX

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P2271

- [10146073](https://open.wenmarpro.com/bulletins/10146073), 2018-10-29: Servicenews article \- Is the MIL on with DTC P2271 \(secondary HO2S \[sensor 2\] circuit signal stuck rich\)? What's likely causing this is the PCM is misinterpreting the A/F sensor \(sensor 1\) signals, causing the PCM to think that sensor 2 is stuck rich.
- [10142451](https://open.wenmarpro.com/bulletins/10142451), 2018-07-02: Tech line summary article \- Is the MIL on with DTC P2271 \(secondary HO2S \[sensor 2\] circuit signal stuck rich\)? What's likely causing this is the PCM is misinterpreting the A/F sensor \(sensor 1\) signals, causing the PCM to think that sensor 2 is stuck rich. To fix this issue, replace both sensors.