The injector offset adaptation for fuel injector B on cylinder 1 has reached the minimum learning limit. Injector flow trends below nominal beyond compensation.
Medium severity. Can I keep driving?Drive as little as possible and go to a repair shop. If you smell fuel or the engine is shaking badly, do not keep driving.
Cylinder 1 is numbered according to the manufacturer: check your engine's manual before working on it.
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Most likely causes
- Injector partially clogged - reduced flow
- Local rail pressure drift on this injector
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
- It affects emissions.
What each character of P2C52 means
- P: Powertrain: engine and transmission
- 2: Generic code: same on every make
- C: Subsystem depends on the code range
- 52: Specific fault in that system
Frequently asked questions
Can I keep driving with code P2C52?
Drive as little as possible and go to a repair shop. If you smell fuel or the engine is shaking badly, do not keep driving.
What causes code P2C52?
The most common causes are: injector partially clogged - reduced flow; local rail pressure drift on this injector.
Related codes
- P2C54Cylinder 2 Fuel Injector B Offset Learning At Min Limit
- P2C56Cylinder 3 Fuel Injector B Offset Learning At Min Limit
- P2C58Cylinder 4 Fuel Injector B Offset Learning At Min Limit
- P2C5ACylinder 5 Fuel Injector B Offset Learning At Min Limit
- P2C5CCylinder 6 Fuel Injector B Offset Learning At Min Limit
- P2C5ECylinder 7 Fuel Injector B Offset Learning At Min Limit
- P2C60Cylinder 8 Fuel Injector B Offset Learning At Min Limit
- P232DCylinder 12 Fuel Injector A Offset Learning At Min Limit
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.