OBD Guide

P021D

Cylinder 10 Injection Timing

P021D is an OBD-II diagnostic trouble code meaning: Cylinder 10 Injection Timing. Common causes: malfunction of the fuel injector of cylinder 10, problems with the injector wiring harness. Estimated repair cost: $111–333.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • Increased fuel consumption
  • Unstable engine operation
  • Power reduction
  • Misfires
  • Check Engine Light Illuminates

Causes

  • Malfunction of the fuel injector of cylinder 10
  • Problems with the injector wiring harness
  • Engine control unit (ECU) malfunction
  • Dirty or worn injector
  • Problems with the fuel pump or pressure regulator

How to Fix

  1. Diagnostics of the condition of the injector of cylinder 10
  2. Checking the injector electrical circuit
  3. Cleaning or replacing the nozzle
  4. Checking fuel pressure
  5. Error reset and test drive

Related codes

Error P021D by Vehicle Brand

FAQ

What does the P021D code mean?

P021D is an OBD-II diagnostic trouble code that indicates: Cylinder 10 Injection Timing

What causes a P021D error code?

The most common causes of P021D include: Malfunction of the fuel injector of cylinder 10; Problems with the injector wiring harness; Engine control unit (ECU) malfunction; Dirty or worn injector.

How do I fix a P021D diagnostic trouble code?

To fix P021D: Diagnostics of the condition of the injector of cylinder 10. Checking the injector electrical circuit. Cleaning or replacing the nozzle. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P021D?

Limited driving only, diagnose soon

How much does it cost to fix P021D?

The estimated repair cost for P021D is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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