P2C55 code meaning
Cylinder 2 Fuel Injector B Offset Learning At Max Limit
Powertrain system Generic code P2Cxx codes Check engine light
What P2C55 means
P2C55 reports that injector B of cylinder 2 needs the maximum offset the engine control allows: even with the longest permitted extension of its pulse it underdelivers. Volvo lists it in Technical Journal 36016 for 2022 model-year cars with engine variants L1 and 06. Version 4.0 of August 2021 still asked for model-specific special software, version 5.0 from September replaced that with a regular software release available from week 37 of 2021, again followed by an adaptation reset in VIDA. Cars treated before week 34 that showed the codes again had to be updated once more. Outside Volvo, a varnished or partly blocked injector, a high-resistance connector or, where the learn uses exhaust oxygen, a leak at the intake runner of cylinder 2 can drive the value up.
P2C55 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P2C55
- Check engine light
- Usually no change in how the car drives
- Possibly uneven idle or lean misfire on cylinder 2
Common causes of P2C55
- Most likelyEngine software (Volvo TJ 36016: update, then reset injector adaptations in VIDA)
- PossibleVarnish or deposits in injector B of cylinder 2, slow opening
- PossibleCorroded or loose connector, chafed wire or voltage drop at this injector
- Less likelyAir leak at the intake runner of cylinder 2 (only where the learn uses exhaust oxygen)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel injector b cyl 2ECM
What each part of P2C55 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| C | Area: hybrid propulsion. |
| 55 | The exact fault in that area. |
What to do next
- Note P2C55 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2C55
What does P2C55 mean?
P2C55 means "Cylinder 2 Fuel Injector B Offset Learning At Max Limit". P2C55 reports that injector B of cylinder 2 needs the maximum offset the engine control allows: even with the longest permitted extension of its pulse it underdelivers. It is a generic code, so it means the same on every make.
Is it safe to drive with P2C55?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2C55 fail an emissions test?
Yes, it can. P2C55 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2C55 to fix?
Difficulty: medium. A typical repair takes 0.3 to 3 hours of work. This is a job for a workshop.
Will P2C55 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.