HONDA
A18-027
Manufacturer communications
- Publication date
- 2018-03-16
- Received by NHTSA
- 2018-04-16
- NHTSA record numbers
- 10133022
Manufacturer summary
Original wording in English
Service bulletin - The MIL is on and DTC P0420 (catalyst system efficiency below threshold) is set. Faulty fuel injectors in one or more cylinders may be affecting combustion and causing a false DTC P0420.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Honda
P0420catalyst system efficiency below thresholdCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.