OBD Guide

P22E8

Cylinder 4 Alternative Fuel Injector Control Circuit Range/Performance

P22E8 is an OBD-II diagnostic trouble code meaning: Cylinder 4 Alternative Fuel Injector Control Circuit Range/Performance. Common causes: open or short circuit in the injector control circuit, alternate fuel injector malfunction. 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 4
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Is On

Causes

  • Open or short circuit in the injector control circuit
  • Alternate fuel injector malfunction
  • Problems with the engine control unit
  • Poor contact in connectors
  • Wiring harness damage

How to Fix

  1. Check the integrity of the injector control circuit
  2. Check injector resistance
  3. Inspect connectors and contacts
  4. Check the control signal from the ECU
  5. If necessary, replace the injector

Related codes

Error P22E8 by Vehicle Brand

FAQ

What does the P22E8 code mean?

P22E8 is an OBD-II diagnostic trouble code that indicates: Cylinder 4 Alternative Fuel Injector Control Circuit Range/Performance

What causes a P22E8 error code?

The most common causes of P22E8 include: Open or short circuit in the injector control circuit; Alternate fuel injector malfunction; Problems with the engine control unit; Poor contact in connectors.

How do I fix a P22E8 diagnostic trouble code?

To fix P22E8: Check the integrity of the injector control circuit. Check injector resistance. Inspect connectors and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P22E8?

Yes, but get it checked soon

How much does it cost to fix P22E8?

The estimated repair cost for P22E8 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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