OBD Guide

P22F8

Cylinder 8 Alternative Fuel Injector Control Circuit Range/Performance

P22F8 is an OBD-II diagnostic trouble code meaning: Cylinder 8 Alternative Fuel Injector Control Circuit Range/Performance. Common causes: malfunction of the alternative fuel injector of cylinder 8, open or short circuit in control circuit. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Unstable engine operation
  • Misfire in cylinder 8
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates

Causes

  • Malfunction of the alternative fuel injector of cylinder 8
  • Open or short circuit in control circuit
  • Poor contact in the injector connectors
  • Problems with the engine control unit
  • Dirty or clogged nozzle

How to Fix

  1. Check injector resistance
  2. Inspect the wiring harness and connectors for damage.
  3. Check control circuit voltage
  4. Clean or replace the nozzle if necessary
  5. Check the operation of the engine control unit

Related codes

Error P22F8 by Vehicle Brand

FAQ

What does the P22F8 code mean?

P22F8 is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Alternative Fuel Injector Control Circuit Range/Performance

What causes a P22F8 error code?

The most common causes of P22F8 include: Malfunction of the alternative fuel injector of cylinder 8; Open or short circuit in control circuit; Poor contact in the injector connectors; Problems with the engine control unit.

How do I fix a P22F8 diagnostic trouble code?

To fix P22F8: Check injector resistance. Inspect the wiring harness and connectors for damage.. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P22F8?

Yes, but get it checked soon

How much does it cost to fix P22F8?

The estimated repair cost for P22F8 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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