AutoCodes – Generic – P13A4

P13A4 Code - Super Knocking Cylinder 5 Injection Switch Off

Quick Answer

The Diagnostic Trouble Code (DTC) will set and the diagnostic function responds to extreme combustion knock by deactivating the injection at cylinder #5. Common causes include Misuse, terminal status switch during vehicle operation, Temporary contamination in combustion chamber. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P13A4 indicates Super Knocking Cylinder 5 Injection Switch Off.
Common causes: Common causes include Misuse, terminal status switch during vehicle operation, Temporary contamination in combustion chamber.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,263

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P13A4 Description

The Diagnostic Trouble Code (DTC) will set and the diagnostic function responds to extreme combustion knock by deactivating the injection at cylinder #5.

OBDII Code P13A4 - Super Knocking Cylinder 5 Injection Switch Off - AutoCodes.com — P13A4 Code - Super Knocking Cylinder 5 Injection Switch Off

What does this mean?

What are the Possible Causes of the DTC P13A4?

Misuse, terminal status switch during vehicle operation
Temporary contamination in combustion chamber

How to Fix the DTC P13A4?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P13A4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need Help with the Code?

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Information for Specific Makes

P13A4 BMW — Super Knocking Cylinder 5 Injection Switch Off
P13A4 MINI — Super Knocking Cylinder 5 Injection Switch Off

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P13A4 Code

1. What are the common symptoms of OBDII code P13A4 (Super Knocking Cylinder 5 Injection Switch Off)?

- Common symptoms include engine misfires, rough idling, loss of power, poor fuel economy, and illuminated check engine light.

2. What are the possible causes of OBDII code P13A4?

- The code P13A4 can be triggered by issues such as faulty fuel injectors, wiring or connector problems, problems with the fuel injection system, or engine mechanical issues.

3. How can I diagnose the cause of OBDII code P13A4?

- To diagnose the cause of P13A4, it is recommended to perform a thorough inspection of the fuel injectors, check for wiring issues, test the fuel injection system, and conduct a compression test to rule out any mechanical problems.

4. Can driving with OBDII code P13A4 cause further damage to the vehicle?

- Continuing to drive with code P13A4 may lead to engine damage, decreased fuel efficiency, and potential catalytic converter damage. It is advisable to address the issue promptly.

5. How should I repair OBDII code P13A4 (Super Knocking Cylinder 5 Injection Switch Off)?

- Repairing code P13A4 involves addressing the underlying cause, which may include replacing faulty fuel injectors, repairing wiring issues, fixing fuel injection system problems, or addressing engine mechanical issues.

6. Can I clear OBDII code P13A4 with a simple reset or by disconnecting the battery?

- While clearing the code temporarily may turn off the check engine light, it is crucial to address the root cause of P13A4 to prevent further issues and potential damage to the vehicle.

7. Are there any DIY tips for troubleshooting OBDII code P13A4?

- DIY tips for troubleshooting P13A4 include visually inspecting the fuel injectors, checking for loose or damaged wiring, and using a scan tool to monitor live data and fuel injector performance.

8. What role does the fuel injector play in triggering OBDII code P13A4?

- A faulty fuel injector can disrupt the fuel delivery to the cylinder, leading to misfires and triggering code P13A4. Proper diagnosis and potential replacement of the injector may be necessary.

9. Is it safe to drive the vehicle with a flashing check engine light due to OBDII code P13A4?

- A flashing check engine light indicates a severe misfire that can cause damage to the catalytic converter. It is recommended to address the issue immediately and avoid driving the vehicle until it is repaired.

10. How can I prevent OBDII code P13A4 from recurring in the future?

- Regular maintenance, such as using high-quality fuel, changing the fuel filter as recommended, and addressing any engine performance issues promptly, can help prevent the recurrence of OBDII code P13A4.