# P2421 on the 2022 Porsche Cayenne

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 P2421

- [11028553](https://open.wenmarpro.com/bulletins/11028553), 2026-02-06: Technical information for Malfunction Indicator Light Active/Fault Memory Entry regarding Tank Shut\-Off Valve Tank Ventilation System “P242100” or “P242200” in DME Control Unit
- [11016731](https://open.wenmarpro.com/bulletins/11016731), 2025-04-07: Technical Information \- Malfunction Indicator Light Active / Fault Memory Entry "P242100" or "P242200" in DME Control Unit: Observe Guided Troubleshooting \(10 / 25\)
- [11007048](https://open.wenmarpro.com/bulletins/11007048), 2024-09-05: Instructions on advanced technical information for the Cayenne DME \- P242100 – Fuel Tank Isolation Valve for Tank Ventilation System
- [11005800](https://open.wenmarpro.com/bulletins/11005800), 2024-08-06: Instructions on advanced technical information for the Cayenne DME P242100 \- fuel tank isolation valve for tank ventilation system \- stuck open