OBD Guide

P02F0

Cylinder 3 Injector Circuit Range/Performance

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Unstable engine operation, vibration at idle
  • Dips and jerks during acceleration
  • Increased fuel consumption
  • Smell of unburned fuel from the exhaust
  • Check Engine Light Illuminates

Causes

  • Faulty or clogged injector of the 3rd cylinder
  • Open or short circuit in the injector circuit wiring
  • Oxidation or damage to the injector connector
  • Low fuel pressure in the rail
  • ECU malfunction (rare)

How to Fix

  1. Read all error codes, record parameters using a scanner
  2. Check the injector connector of the 3rd cylinder for oxidation and connection reliability
  3. Measure the resistance of the injector winding (norm: 10–18 Ohms for most cars)
  4. Check the wiring from the computer to the injector for open circuit and short circuit.
  5. Wash the nozzle on the stand or replace it if necessary
  6. Check the fuel pressure in the rail

Related codes

Error P02F0 by Vehicle Brand