P02CF
Cylinder 2 Fuel Injector A Offset Learning At Max Limit
Generic OBD-II
Real-world scan data
Seen in
109
scans in the past year
Found in
<0.1%
of scans
<0.1%
of scans that found faults
Appears alongside · share of P02CF scans
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check the fuel injector wiring and connections for any loose or damaged wires.
- Inspect the fuel injector for any clogs or blockages and clean it if necessary.
- Reset the fuel injector offset learning values and perform an idle relearn procedure.
- Replace the fuel injector if it is determined to be faulty or malfunctioning.
- Perform a thorough inspection of the fuel system, including the fuel pump and fuel pressure regulator, to ensure proper functioning.
Common causes
Most likely first
- Faulty fuel injector in cylinder 2
- Clogged or dirty fuel injector in cylinder 2
- Electrical issue with fuel injector in cylinder 2
- Fuel pressure problem affecting injector in cylinder 2
- Engine control module (ECM) malfunction affecting injector in cylinder 2
How to diagnose & fix
Work through it in order
- Engine misfires or runs rough
- Poor fuel efficiency
- Decreased engine power or acceleration
- Rough idle or stalling
- Increased exhaust emissions
Read & clear P02CF yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.