AutoCodes – Land Rover – P1315 Land Rover

P1315 Land Rover Code - Persistent Misfire

Quick Answer

The misfire monitor runs continuously and is designed to detect levels of misfire that can cause either thermal damage to the catalyst or excessive tailpipe emissions. Common causes include Faulty / worn-out spark plugs, Clogged fuel injectors, Faulty ignition coil. 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: P1315 Land Rover indicates Persistent Misfire.
Common causes: Common causes include Faulty / worn-out spark plugs, Clogged fuel injectors, Faulty ignition coil.
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 5,454

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 Jan 18, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1315 Land Rover Description

The misfire monitor runs continuously and is designed to detect levels of misfire that can cause either thermal damage to the catalyst or excessive tailpipe emissions. Determination of a misfire is made by analysis of changes in crankshaft speed, since a misfire will cause a fall in speed. Essentially the monitor determines the time taken for the crankshaft to move through 180 degrees (4 cylinders only) for the current firing event and compares that to the time taken for the previous firing event. If the time taken for the 'current' firing is greater than the previous firing, then a misfire is judged to have occurred

OBDII Code P1315 Land Rover - Persistent Misfire - AutoCodes.com — P1315 Land Rover Code - Persistent Misfire

What does this mean?

What are the Possible Causes of the DTC P1315 Land Rover?

Faulty / worn-out spark plugs
Clogged fuel injectors
Faulty ignition coil
Faulty fuel injectors
Cylinder compression low
Low fuel pressure
Faulty Engine Control Module (ECM)

How to Fix the DTC P1315 Land Rover?

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 P1315 Land Rover 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 P1315 Land Rover code?

Need more information on how to fix the P1315 Land Rover code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1315 Land Rover 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 P1315 Land Rover Code

1. What are the common symptoms of OBDII code P1315 in a Land Rover indicating a persistent misfire?

- Common symptoms include rough idling, engine hesitation, poor acceleration, and potential stalling.

2. What are the possible causes of OBDII code P1315 in a Land Rover?

- The code P1315 in a Land Rover typically indicates a misfire due to issues such as faulty ignition coils, spark plugs, fuel injectors, or a vacuum leak.

3. How can I diagnose the cause of OBDII code P1315 in my Land Rover?

- To diagnose the cause of code P1315, it is recommended to perform a thorough inspection of the ignition system components, fuel system, and vacuum lines. A professional diagnostic scan tool can also help pinpoint the issue.

4. Can driving with OBDII code P1315 in a Land Rover cause further damage to the vehicle?

- Driving with a persistent misfire indicated by code P1315 can potentially cause damage to the catalytic converter over time, leading to more extensive and costly repairs.

5. What are some repair tips for resolving OBDII code P1315 in a Land Rover?

- Repair tips include replacing faulty ignition coils, spark plugs, or fuel injectors, addressing any vacuum leaks, and ensuring proper engine timing.

6. How much does it typically cost to repair OBDII code P1315 in a Land Rover?

- The cost of repairing code P1315 can vary depending on the specific cause of the misfire and the labor rates in your area. It is recommended to get a diagnosis from a qualified mechanic for an accurate estimate.

7. Can I reset OBDII code P1315 in my Land Rover on my own?

- While you can attempt to clear the code using an OBDII scanner, it is important to address the underlying issue causing the misfire to prevent the code from reoccurring.

8. Will OBDII code P1315 in a Land Rover cause the check engine light to illuminate?

- Yes, code P1315 will trigger the check engine light in your Land Rover to alert you to a persistent misfire that needs attention.

9. Is it safe to continue driving my Land Rover with OBDII code P1315 present?

- It is not recommended to drive your Land Rover with a persistent misfire indicated by code P1315, as it can lead to further engine damage and decreased performance.

10. How long does it take to repair OBDII code P1315 in a Land Rover?

- The repair time for code P1315 can vary depending on the exact cause of the misfire and the availability of parts. In general, it may take a few hours to a full day for diagnosis and repairs to be completed.