OBD Guide

P13A4

Super Knocking Cylinder 5 Injection Switch Off

P13A4 is an OBD-II diagnostic trouble code meaning: Super Knocking Cylinder 5 Injection Switch Off. Common causes: poor quality fuel, faulty spark plug in cylinder 5. Estimated repair cost: $6–56.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–56 (est.)

Symptoms

  • Loss of engine power
  • Unstable engine operation
  • Metallic knocking from the engine (detonation)
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Poor quality fuel
  • Faulty spark plug in cylinder 5
  • Problems with the ignition coil
  • Incorrect ignition timing
  • Mechanical engine problems (wear, carbon deposits)

How to Fix

  1. Check the quality of the fuel, drain and refill with quality fuel if necessary.
  2. Diagnose and replace the spark plug in cylinder 5
  3. Check the ignition coil and high-voltage wires
  4. Check the correct operation of the knock sensor
  5. Perform computer diagnostics to check the ignition timing

Related codes

FAQ

What does the P13A4 code mean?

P13A4 is an OBD-II diagnostic trouble code that indicates: Super Knocking Cylinder 5 Injection Switch Off

What causes a P13A4 error code?

The most common causes of P13A4 include: Poor quality fuel; Faulty spark plug in cylinder 5; Problems with the ignition coil; Incorrect ignition timing.

How do I fix a P13A4 diagnostic trouble code?

To fix P13A4: Check the quality of the fuel, drain and refill with quality fuel if necessary.. Diagnose and replace the spark plug in cylinder 5. Check the ignition coil and high-voltage wires. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P13A4?

Do not drive — repair immediately

How much does it cost to fix P13A4?

The estimated repair cost for P13A4 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat