P02D6
Cylinder 6 Fuel Injector A Offset Learning At Min Limit
Fuel injector
Generic OBD-II
High
What it means
P02D6 means the engine controller's fine-tuning of the cylinder 6 injector — the small offset it learns to keep fueling accurate — has reached its minimum limit and can't correct any further. That usually points to an injector that's drifted out of calibration, or a wiring/control-module issue affecting its signal. Cylinder 6 may run slightly rough until the injector or circuit is corrected.
High
Can I keep driving? You can usually drive, but cylinder 6 may run rough as its injector calibration drifts. Have it checked soon to keep fueling accurate.
Common symptoms
What you'll notice
- Check-engine light on
- Rough idle or a slight miss from one cylinder
- Minor hesitation or reduced smoothness
- Often no dramatic driving change beyond the warning light
Common causes
Most likely first
- Fuel injector on cylinder 6 out of its expected calibration rangeLikely
- Damaged wiring or a poor connection at the injector control moduleCommon
- Corroded or loose connector affecting the injector signalCommon
- Faulty fuel injector control module or its supply/groundLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and confirm the offset-learning fault is on cylinder 6.
- Inspect the injector and control-module wiring and connectors for damage or corrosion.
- Check the injector control module's supply voltage and ground circuits against the battery.
- Verify the cylinder 6 injector's calibration/flow; replace it or re-enter its trim code if required.
- If the circuit and injector are good, evaluate the control module. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P02D6?+
Usually yes for short trips, but the injector's fueling is no longer accurate on cylinder 6, so have it checked to avoid rough running or misfires.
Can I just clear P02D6?+
It will return until the injector calibration or its wiring is corrected — some injectors also need their trim code re-entered after service.
Related codes
Often seen with P02D6
Read & clear P02D6 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX