Cylinder 6 Fuel Injector A Offset Learning At Max Limit
What it means
P02D7 means the ECM's learned fuel-injector correction (offset) for cylinder 6 has reached its maximum limit — the module is adding as much compensation as it is allowed and cylinder 6 still isn't delivering fuel as expected. It usually points to a worn or out-of-spec injector, its wiring, or a fuel-delivery issue on that cylinder. The engine runs, but the pinned correction should be diagnosed and reset.
Can I keep driving? Usually drivable — the engine runs, but cylinder 6's injector correction has maxed out, so expect uneven running that should be diagnosed before it worsens.
Common symptoms
What you'll notice
- Check-engine light on
- Rough or uneven idle
- Possible cylinder 6 misfire, hesitation, or reduced power
- Sometimes no obvious driving symptom beyond the light
Common causes
Most likely first
- Worn or out-of-spec cylinder 6 injector needing more correction than allowedLikely
- Damaged, corroded, or loose wiring/connector at the cylinder 6 injectorCommon
- Fuel-delivery issue to cylinder 6 (pressure or flow) skewing the learned offsetCommon
- Faulty injector control module or ECM — least commonLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and review cylinder 6's injector offset/correction values with a scan tool.
- Inspect the cylinder 6 injector connector, wiring, and injector-control-module supply/ground circuits.
- Test the injector and verify fuel pressure/flow; compare cylinder 6 to the other cylinders.
- Replace the injector if worn or out of spec, then reset injector learning. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P02D7?+
Can I just clear P02D7?+
Related codes
Often seen with P02D7
Read & clear P02D7 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.