AutoCodes – Lincoln – P2338 Lincoln

P2338 Lincoln Code - Cylinder 3 Above Knock Threshold

Quick Answer

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. Common causes include Faulty knock sensor, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted. 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: P2338 Lincoln indicates Cylinder 3 Above Knock Threshold.
Common causes: Common causes include Faulty knock sensor, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,145

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2338 Lincoln Description

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. The sensor is attached to the cylinder block, cylinder head or intake manifold. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (ECM). The ECM uses this signal to retard the ignition timing and protect the engine from this damaging pre-ignition.

OBDII Code P2338 Lincoln - Cylinder 3 Above Knock Threshold - AutoCodes.com — P2338 Lincoln Code - Cylinder 3 Above Knock Threshold

What does this mean?

What are the Possible Causes of the DTC P2338 Lincoln?

Faulty knock sensor
Knock sensor circuit poor electrical connection
Knock sensor harness is open or shorted
Faulty Engine Control Module (ECM)

How to Fix the DTC P2338 Lincoln?

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 P2338 Lincoln 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.

Need more information about the P2338 Lincoln code?

Need more information on how to fix the P2338 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2338 Lincoln code diagnosed by a professional: Find a repair shop in your area

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 P2338 Lincoln Code

1. What are the common symptoms of OBDII code P2338 in a Lincoln related to Cylinder 3 Above Knock Threshold?

- Common symptoms may include engine misfires, rough idle, loss of power, and in some cases, engine knocking noises.

2. What are the possible causes of OBDII code P2338 in a Lincoln indicating Cylinder 3 Above Knock Threshold?

- The code P2338 can be triggered by issues such as a faulty ignition coil, spark plug, wiring problems, or a problem with the engine control module.

3. How can I diagnose the underlying issue causing OBDII code P2338 in my Lincoln?

- To diagnose the issue, you may need to perform a thorough inspection of the ignition system components, check for loose or damaged wiring, and use a scan tool to monitor sensor data.

4. Can a DIY enthusiast repair OBDII code P2338 in a Lincoln at home?

- Depending on your skill level and access to tools, DIY repair is possible. Common solutions include replacing faulty ignition components or repairing damaged wiring.

5. Is it safe to continue driving my Lincoln with OBDII code P2338 indicating Cylinder 3 Above Knock Threshold?

- It is not recommended to drive with this code active, as it may lead to further engine damage and reduced performance. Address the issue promptly.

6. How much does it typically cost to repair OBDII code P2338 in a Lincoln at a professional auto repair shop?

- The cost of repairs can vary based on the underlying issue and labor rates in your area. Expect to pay anywhere from $100 to $300 for parts and labor.

7. Can OBDII code P2338 in a Lincoln be a recurring issue even after repair?

- If the root cause of the code is not properly addressed during the repair, it is possible for the code to reoccur. Ensure thorough diagnosis and repair to prevent this.

8. Are there any maintenance tips to prevent OBDII code P2338 related to Cylinder 3 Above Knock Threshold in a Lincoln?

- Regular maintenance of the ignition system, including timely replacement of spark plugs and ignition coils, can help prevent issues that trigger this code.

9. Will OBDII code P2338 in a Lincoln cause permanent damage to the engine if left unresolved?

- Ignoring this code can potentially lead to engine damage over time, especially if the underlying issue causes persistent misfires or knocking.

10. Can resetting the OBDII system clear the P2338 code temporarily in a Lincoln?

- Resetting the system may temporarily clear the code, but it will return if the underlying issue is not addressed. It's important to diagnose and fix the problem.