OBD Guide

P02C4

Cylinder 11 - Injector Restricted

P02C4 is an OBD-II diagnostic trouble code meaning: Cylinder 11 - Injector Restricted. Common causes: nozzle clogged, problems in the injector wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Misfires
  • Reduced engine power
  • Increased fuel consumption
  • Unstable idling

Causes

  • Nozzle clogged
  • Problems in the injector wiring harness
  • Faulty injector solenoid valve
  • Problems with the ECU

How to Fix

  1. Check the condition of the injector of cylinder 11
  2. Test the injector electrical circuit
  3. Clean or replace the nozzle if necessary
  4. Check the operation of the computer

Related codes

Error P02C4 by Vehicle Brand

FAQ

What does the P02C4 code mean?

P02C4 is an OBD-II diagnostic trouble code that indicates: Cylinder 11 - Injector Restricted

What causes a P02C4 error code?

The most common causes of P02C4 include: Nozzle clogged; Problems in the injector wiring harness; Faulty injector solenoid valve; Problems with the ECU.

How do I fix a P02C4 diagnostic trouble code?

To fix P02C4: Check the condition of the injector of cylinder 11. Test the injector electrical circuit. Clean or replace the nozzle if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P02C4?

Limited driving only, diagnose soon

How much does it cost to fix P02C4?

The estimated repair cost for P02C4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat