# P20F8 on the 2025 Mazda Mazda3

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 P20F8

- [11032001](https://open.wenmarpro.com/bulletins/11032001), 2026-05-03: This bulletin supersedes the previously issued bulletin\(s\) listed below. The changes are noted in Red text. 01\-003/26 01/30/26 Some vehicles may exhibit a check engine light ON with DTC P20F8:00 stored. P20F8:00 \- Swirl control circuit range/performance problem. In these cases, increasing temperature levels of the Swirl Control Valve \(SCV\) motor due to excessive actuation leads to duty limitation, causing poor opening􀀀angle response and resulting in a stuck judgment. To eliminate this concern, the PCM logic has been modified. REPAIR PROCEDURE Reprogram the PCM with the Mazda Modular Diagnostic System \(M\-MDS\), using Mazda Diagnostic and Repair Software \(MDARS\). Refer to MDARS ECU Reprogramming Procedure.
- [11028102](https://open.wenmarpro.com/bulletins/11028102), 2026-02-03: Some vehicles may exhibit a check engine light ON with DTC P20F8:00 stored. P20F8:00 \- Swirl control circuit range/performance problem. • The DTC is caused by overheating of the Swirl Control Valve \(SCV\) motor which leads to duty limitation, causing poor opening􀀀angle response and resulting in stuck judgment. To eliminate this concern, the PCM control software has been modified.