JEEP
1804922
Manufacturer communications
- Publication date
- 2022-03-11
- Received by NHTSA
- 2022-05-31
- NHTSA record numbers
- 10212401 · 10220798 · 10223180 · 10229142
Multiple filings of the same bulletin are grouped here; original record numbers remain available.
Manufacturer summary
Original wording in English
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following (DTC): P0441- EVAP Purge System Performance. The customer may comment on one or more of the following: Abnormal Engine noise heard periodically. This noise is caused by Variable Valve Timing (VVT) cleaning cycle. A misfire condition with no Malfunction Indicator Lamp (MIL) illuminationor Diagnostic Trouble Codes (DTCs) set. In addition, the following software enhancements are available: Updates to include misfire DTCs.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Jeep
P0441EVAP Purge System PerformanceCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Jeep | WRANGLER | 2020 |