P02FE
Cold Start Fuel Injection Control Circuit Range/Performance
Generic OBD-II
Common symptoms
What you'll notice
- Check the fuel pressure and replace the fuel pump if necessary.
- Inspect and clean the fuel injectors.
- Test and replace the oxygen sensor if faulty.
- Check and repair any wiring issues or loose connections in the fuel injection control circuit.
- Verify and update the engine control module software, if available.
Common causes
Most likely first
- Faulty fuel injectors or fuel injector circuitry
- Issues with the engine control module (ECM) or powertrain control module (PCM)
- Malfunctioning oxygen sensor or exhaust gas recirculation (EGR) valve
- Problems with the fuel pressure regulator or fuel pump
- Clogged or restricted fuel filter
How to diagnose & fix
Work through it in order
- Engine misfires or stumbles during a cold start
- Decreased fuel efficiency during the first few minutes of driving
- Rough idle when starting the vehicle in cold conditions
- Difficulty starting the engine, especially in colder temperatures
- Irregular or fluctuating engine RPM during the initial startup
Read & clear P02FE yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.