OBD Guide

P13A2

Super Knocking Cylinder 3 Injection Switch Off

P13A2 is an OBD-II diagnostic trouble code meaning: Super Knocking Cylinder 3 Injection Switch Off. Common causes: poor fuel quality (low octane number), malfunction of the spark plug in cylinder 3. Estimated repair cost: $11–89.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$11–89 (est.)

Symptoms

  • Loud metallic knocking noise from engine
  • Power Loss
  • Engine vibration
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Poor fuel quality (low octane number)
  • Malfunction of the spark plug in cylinder 3
  • Problems with the cooling system (overheating)
  • Incorrect ignition timing
  • Excessive carbon formation in the combustion chamber

How to Fix

  1. Check fuel quality and replace if necessary
  2. Diagnostics and replacement of spark plugs in cylinder 3
  3. Check the engine cooling system
  4. Diagnostics of the operation of the knock sensor
  5. Check and adjust the ignition timing
  6. Mechanical diagnostics of the cylinder for damage

Related codes

FAQ

What does the P13A2 code mean?

P13A2 is an OBD-II diagnostic trouble code that indicates: Super Knocking Cylinder 3 Injection Switch Off

What causes a P13A2 error code?

The most common causes of P13A2 include: Poor fuel quality (low octane number); Malfunction of the spark plug in cylinder 3; Problems with the cooling system (overheating); Incorrect ignition timing.

How do I fix a P13A2 diagnostic trouble code?

To fix P13A2: Check fuel quality and replace if necessary. Diagnostics and replacement of spark plugs in cylinder 3. Check the engine cooling system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P13A2?

Do not drive — repair immediately

How much does it cost to fix P13A2?

The estimated repair cost for P13A2 is $11–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat