# P0140 on the 2000 Infiniti QX4

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 P0140

- [630821](https://open.wenmarpro.com/bulletins/630821), 2002-04-24: SUBJECT REGARDING MALFUNCTION INDICATOR LAMP ON WITH REAR OXYGEN SENSOR DIAGNOSTIC TROUBLE CODE PO138\-P0140 OR P0158\-P0160 STORED. \*YH
- [621950](https://open.wenmarpro.com/bulletins/621950), 2001-10-05: SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP \(MIL\) ON WITH REAR OXYGEN SENSOR DIAGNOSTIC TROUBLE CODES P0138, P0139, P0140, P0158, P0159, AND P0160 STORED IN THE ENGINE CONTROL MODULE \(ECM\). \*TT