OBD-II code · Powertrain (generic, extended)
P22F1 Particulate Matter Sensor Heater Performance
The particulate matter (PM) sensor heater on diesel after-DPF systems does not reach or hold the calibrated operating temperature within the expected time. Without proper heating the PM sensor cannot be regenerated and read correctly.
Is it safe to drive with P22F1?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPM sensor aging
- PossibleIncreased heater resistance
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Pm Sensor, Pm Heater Circuit
Related codes
- P22EECylinder 6 Alternative Fuel Injector Control Circuit Low
- P22EFCylinder 6 Alternative Fuel Injector Control Circuit High
- P22F0Cylinder 6 Alternative Fuel Injector Control Circuit Range/Performance
- P22F2Cylinder 7 Alternative Fuel Injector Control Circuit Low
- P22F3Cylinder 7 Alternative Fuel Injector Control Circuit High
- P22F4Cylinder 7 Alternative Fuel Injector Control Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.