What are the common causes of P02F6?

A faulty injector on cylinder 9. A short in the injector 9 wiring. Corrosion at the injector 9 connector. A faulty fuel pressure regulator. A clogged fuel filter.

Monitor the cylinder 9 injector signal on a scan tool. Inspect the injector 9 connector and wiring for damage. Test the injector 9 circuit for a short or open. Check the fuel pressure regulator and filter. Replace the injector 9 if it is faulty. Clear the code and retest.

P02F6

Cylinder 9 Injector Circuit Range/Performance

System: Injector circuits (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P02F6 means Cylinder 9 Injector Circuit Range/Performance.

Where it lives

For P02F6, the description names the injector as the part involved. The description of P02F6 puts it on cylinder 9.

Check these first

A faulty injector on cylinder 9
A short in the injector 9 wiring
Corrosion at the injector 9 connector
A faulty fuel pressure regulator
A clogged fuel filter

What to do next

Monitor the cylinder 9 injector signal on a scan tool
Inspect the injector 9 connector and wiring for damage
Test the injector 9 circuit for a short or open
Check the fuel pressure regulator and filter
Replace the injector 9 if it is faulty
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.