P02F7
Cylinder 10 Injector Circuit Range/Performance
Fuel injector circuit
Generic OBD-II
High
What it means
P02F7 means the electrical signal driving the fuel injector on cylinder 10 is outside its expected range. The injector may be firing weakly, erratically, or not at all — usually from a failing injector, damaged wiring, or a fault in the injector control module — which shows up as a misfire and reduced power on that cylinder.
High
Can I keep driving? Driveable, but cylinder 10 may misfire or run weak; a persistent misfire can overheat the catalytic converter, so fix it soon.
Common symptoms
What you'll notice
- Check-engine light on
- Misfire or rough running, especially at idle
- Reduced power and hesitation
- Possible hard starting
Common causes
Most likely first
- Faulty cylinder 10 fuel injector or its internal windingLikely
- Open, shorted, or chafed wiring in the injector circuitCommon
- Poor connection or corrosion at the injector connectorCommon
- Fault in the injector driver / fuel injector control module (FICM)Less often
- Failed ECM (rare)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check for companion cylinder-10 or other injector codes.
- Inspect the cylinder 10 injector connector and wiring for damage, corrosion, or looseness.
- Measure the injector's resistance and compare it to spec and to the other injectors.
- Check the injector control module supply voltage and ground circuits.
- Replace the injector if out of range; retest driver/module circuits only after wiring is confirmed good. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P02F7?+
Only briefly. A weak or dead injector on cylinder 10 causes a misfire that can send raw fuel into the exhaust and damage the catalytic converter.
Can I just clear P02F7?+
It returns as soon as the ECM again sees the injector signal out of spec. Repair the injector or its circuit first, then clear and re-test.
Related codes
Often seen with P02F7
Read & clear P02F7 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