# P1491 on the 2002 Acura MDX

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 P1491

- [10024562](https://open.wenmarpro.com/bulletins/10024562), 2008-04-24: ACURA SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. WARRANTY EXTENSION: EGR VALVE CONTAMINATION MAY CAUSE ENGINE HESITATION/SURGE OR DTC P1491. CSC WAS RECEIVED. \*NJ