P2C58 code meaning
Cylinder 4 Fuel Injector B Offset Learning At Min Limit
Powertrain system Generic code P2Cxx codes Check engine light
What P2C58 means
P2C58 marks the minimum limit of the injector B offset on cylinder 4. Useful for diagnosis is a look at the A injector of the same cylinder: if P02D2 is stored as well, both valves seem to overdeliver, which points to something both learns share, such as the measurement or the cylinder itself, rather than to one injector. A lone P2C58 points to injector B, for example a seat that drips after shut-off and makes hot restarts long or the first seconds rough. On a four-cylinder engine this is the last cylinder of the row. No manufacturer publishes this code; Volvo's Technical Journal 36016 lists only the opposite code P2C59 for cylinder 4. Detection of an adaptation at its limit is demanded by CARB 1968.2 (e)(6.2.2).
P2C58 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 4 hours
- Clears after repairAfter a drive cycle
Symptoms of P2C58
- Check engine light
- Often nothing else noticeable
- Long hot start or rough first seconds, possibly misfire on cylinder 4
- Possibly fuel smell or higher consumption
Common causes of P2C58
- Most likelyInjector B of cylinder 4 leaking at the seat and adding fuel after closing
- PossibleReplacement injector of a different flow rating or not matched to the engine software
- PossibleLearned values or engine software not up to date (Volvo pairs an update with an adaptation reset for the related Max codes)
- Less likelySupply pressure on this injector set higher than the model assumes (regulator)
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 4ECM
What each part of P2C58 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. |
| 58 | The exact fault in that area. |
What to do next
- Note P2C58 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 P2C58
What does P2C58 mean?
P2C58 means "Cylinder 4 Fuel Injector B Offset Learning At Min Limit". P2C58 marks the minimum limit of the injector B offset on cylinder 4. It is a generic code, so it means the same on every make.
Is it safe to drive with P2C58?
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 P2C58 fail an emissions test?
Yes, it can. P2C58 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 P2C58 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P2C58 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.