What are the common causes of P02F3?

A faulty injector on cylinder 6. A short or open in the injector 6 wiring. Corrosion at the injector 6 connector. An injector 6 installed wrong. A faulty ECM driver.

Monitor the cylinder 6 injector signal on a scan tool. Inspect the injector 6 connector and wiring for damage. Test the injector 6 circuit for a short or open. Verify the injector 6 is installed correctly. Replace the injector 6 if it is faulty. Clear the code and retest.

P02F3

Cylinder 6 Injector Circuit Range/Performance

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

What it means

P02F3 means Cylinder 6 Injector Circuit Range/Performance.

Where it lives

For P02F3, the part to look at first is the injector named here. The description of P02F3 puts it on cylinder 6.

Check these first

A faulty injector on cylinder 6
A short or open in the injector 6 wiring
Corrosion at the injector 6 connector
An injector 6 installed wrong
A faulty ECM driver

What to do next

Monitor the cylinder 6 injector signal on a scan tool
Inspect the injector 6 connector and wiring for damage
Test the injector 6 circuit for a short or open
Verify the injector 6 is installed correctly
Replace the injector 6 if it is faulty
Clear the code and retest

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Updated

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