OBD Guide

P22DF

Cylinder 2 Alternative Fuel Injector Control Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable operation of the engine using alternative fuel
  • Reduced power when running on alternative fuels
  • Increased fuel consumption
  • Switching to gasoline if there are problems with alternative fuels
  • Check Engine Light Is On

Causes

  • Open or short circuit in the alternative fuel injector control circuit
  • Alternate fuel injector malfunction
  • Problems with the wiring harness or connectors
  • Engine control unit malfunction
  • Corrosion of electrical contacts

How to Fix

  1. Check the condition of the injector wiring harness and connectors
  2. Measure the resistance of the alternative fuel injector
  3. Check control circuit voltage
  4. Scan the control unit for other errors
  5. If necessary, replace the alternative fuel injector

Related codes

Error P22DF by Vehicle Brand