HONDA
A21-007
Manufacturer communications
- Publication date
- 2023-06-02
- Received by NHTSA
- 2023-06-15
- NHTSA record numbers
- 10237806
Manufacturer summary
Original wording in English
Service Bulletin - The MIL comes on with DTC P0300 (random misfire detected) or P0301–P0304 (cylinder misfire detected) due to carbon buildup on the intake valves may be affecting combustion.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Honda
P0300random misfire detectedHonda
P0304cylinder misfire detectedCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.