OBD Guide

P13A0

Super Knocking Cylinder 1 Injection Switch Off

P13A0 is an OBD-II diagnostic trouble code meaning: Super Knocking Cylinder 1 Injection Switch Off. Common causes: poor fuel quality (low octane number), faulty spark plug in cylinder 1. Estimated repair cost: $17–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–167 (est.)

Symptoms

  • Reduced engine power
  • Vibrations during engine operation
  • Metallic knock from cylinder 1
  • Check Engine light comes on

Causes

  • Poor fuel quality (low octane number)
  • Faulty spark plug in cylinder 1
  • Problems with the cooling system (overheating)
  • Incorrect ignition timing
  • Worn or damaged piston group of cylinder 1

How to Fix

  1. Check the quality of the fuel and, if necessary, replace it with fuel with a higher octane number
  2. Diagnose and replace spark plugs in the problematic cylinder
  3. Check the cooling system for overheating
  4. Scan the ECU for other errors
  5. Check the condition of the piston group of cylinder 1

Related codes

FAQ

What does the P13A0 code mean?

P13A0 is an OBD-II diagnostic trouble code that indicates: Super Knocking Cylinder 1 Injection Switch Off

What causes a P13A0 error code?

The most common causes of P13A0 include: Poor fuel quality (low octane number); Faulty spark plug in cylinder 1; Problems with the cooling system (overheating); Incorrect ignition timing.

How do I fix a P13A0 diagnostic trouble code?

To fix P13A0: Check the quality of the fuel and, if necessary, replace it with fuel with a higher octane number. Diagnose and replace spark plugs in the problematic cylinder. Check the cooling system for overheating. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P13A0?

Do not drive — repair immediately

How much does it cost to fix P13A0?

The estimated repair cost for P13A0 is $17–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat