AutoCodes – Jaguar – P1374 Jaguar

P1374 Jaguar Code - Ignition Coil Cylinder 4 Early Activation

Quick Answer

P1374 Jaguar indicates Ignition Coil Cylinder 4 Early Activation. Common causes include Faulty Ignition Coil, Ignition Coil harness is open or shorted, Ignition Coil circuit poor electrical connection. 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
P1374 Jaguar indicates Ignition Coil Cylinder 4 Early Activation.
Common causes
Common causes include Faulty Ignition Coil, Ignition Coil harness is open or shorted, Ignition Coil circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,545
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 16, 2019
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Code P1374 Jaguar Description

OBDII Code P1374 Jaguar - Ignition Coil Cylinder 4 Early Activation - AutoCodes.com
P1374 Jaguar Code - Ignition Coil Cylinder 4 Early Activation

What are the Possible Causes of the DTC P1374 Jaguar?

  • Faulty Ignition Coil
  • Ignition Coil harness is open or shorted
  • Ignition Coil circuit poor electrical connection

How to Fix the DTC P1374 Jaguar?

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 P1374 Jaguar 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 P1374 Jaguar code?

Need more information on how to fix the P1374 Jaguar code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1374 Jaguar 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 P1374 Jaguar Code

1. What are the common symptoms of OBDII code P1374 in a Jaguar related to ignition coil cylinder 4 early activation?

- Common symptoms include engine misfires, rough idling, loss of power, and potentially decreased fuel efficiency.

2. What typically causes the ignition coil cylinder 4 early activation error code P1374 in a Jaguar?

- The most common cause is a faulty ignition coil on cylinder 4, which can lead to the coil activating earlier than it should.

3. How can I diagnose the issue causing OBDII code P1374 in my Jaguar related to cylinder 4 ignition coil early activation?

- Use a diagnostic tool to check for specific codes, visually inspect the ignition coil on cylinder 4 for any damage, and perform a resistance test on the coil.

4. Can driving with code P1374 related to ignition coil cylinder 4 early activation cause further damage to my Jaguar?

- Continuing to drive with this issue can potentially damage the catalytic converter, spark plugs, and even the engine itself due to unburned fuel.

5. What repair steps can I take to fix OBDII code P1374 in my Jaguar due to cylinder 4 ignition coil early activation?

- Replace the faulty ignition coil on cylinder 4, clear the error code, and test the vehicle to ensure the issue has been resolved.

6. Are there any preventive measures to avoid encountering the P1374 error code related to ignition coil cylinder 4 early activation in a Jaguar?

- Regularly inspect and maintain the ignition system components, including the coils, spark plugs, and wiring, to prevent issues that can lead to this error code.

7. Can a DIY enthusiast with automotive knowledge fix the OBDII code P1374 issue in a Jaguar themselves?

- Yes, replacing the ignition coil on cylinder 4 is a task that can be performed by DIY enthusiasts with the necessary tools and knowledge.

8. How much can I expect to pay for parts and labor to resolve the OBDII code P1374 in my Jaguar due to ignition coil cylinder 4 early activation?

- Costs can vary, but typically, replacing an ignition coil can range from $50 to $200 for the part, with additional labor costs if taken to a mechanic.

9. Will resetting the error code using an OBDII scanner temporarily fix the issue related to ignition coil cylinder 4 early activation in a Jaguar?

- Resetting the code may temporarily clear the warning light, but if the underlying issue with the ignition coil on cylinder 4 is not fixed, the code is likely to return.

10. Is it safe to continue driving my Jaguar with the P1374 error code related to cylinder 4 ignition coil early activation if the symptoms are not severe?

- It is not recommended to drive the vehicle with this issue unresolved, as it can lead to further damage and potentially unsafe driving conditions.

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