OBD Guide

P22DF

Cylinder 2 Alternative Fuel Injector Control Circuit High

P22DF is an OBD-II diagnostic trouble code meaning: Cylinder 2 Alternative Fuel Injector Control Circuit High. Common causes: open or short circuit in the alternative fuel injector control circuit, alternate fuel injector malfunction. Estimated repair cost: $56–167.

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

FAQ

What does the P22DF code mean?

P22DF is an OBD-II diagnostic trouble code that indicates: Cylinder 2 Alternative Fuel Injector Control Circuit High

What causes a P22DF error code?

The most common causes of P22DF include: 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.

How do I fix a P22DF diagnostic trouble code?

To fix P22DF: Check the condition of the injector wiring harness and connectors. Measure the resistance of the alternative fuel injector. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P22DF?

Yes, but get it checked soon

How much does it cost to fix P22DF?

The estimated repair cost for P22DF is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat