# P1421 on the 2009 Infiniti QX56

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.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P1421

- [10030086](https://open.wenmarpro.com/bulletins/10030086), 2009-07-31: INFINITI: AFFECTED VEHICLES HAS THE MIL ON AND DTC P1421 STORED \(COLD START CONTROL\) IN ECM. \*PE