AutoCodes – Mercury – P0316 Mercury

P0316 Mercury Code - Misfire Detected On Startup First 1000 Revolutions

Quick Answer

The Crankshaft Position (CKP) sensor signal is monitored by the Engine Control Module (ECM) for errors. Common causes include Faulty Crankshaft Position (CKP), Crankshaft Position (CKP) sensor harness is open or shorted, Crankshaft Position (CKP) sensor 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
P0316 Mercury indicates Misfire Detected On Startup First 1000 Revolutions .
Common causes
Common causes include Faulty Crankshaft Position (CKP), Crankshaft Position (CKP) sensor harness is open or shorted, Crankshaft Position (CKP) sensor 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 18,571
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 05, 2020
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Code P0316 Mercury Description

The Crankshaft Position (CKP) sensor signal is monitored by the Engine Control Module (ECM) for errors. The Diagnostic Trouble Code (DTC) P0316 code is set when ECM detects a misfire during the first 1,000 revolution test interval following the engine start.
OBDII Code P0316 Mercury - Misfire Detected On Startup First 1000 Revolutions  - AutoCodes.com
P0316 Mercury Code - Misfire Detected On Startup First 1000 Revolutions

What are the Possible Causes of the DTC P0316 Mercury?

  • Faulty Crankshaft Position (CKP)
  • Crankshaft Position (CKP) sensor harness is open or shorted
  • Crankshaft Position (CKP) sensor circuit poor electrical connection
  • Ignition System
  • Fuel Injectors
  • Running out of fuel
  • Fuel Quality
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0316 Mercury?

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 P0316 Mercury 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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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 P0316 Mercury Code

1. What are the common symptoms of OBDII code P0316 in a Mercury vehicle?

- Common symptoms include rough idle, hesitation or stumbling on startup, and potential engine misfires during the first 1000 revolutions.

2. What are the possible causes of OBDII code P0316 in a Mercury vehicle?

- The code P0316 indicates a misfire detected on startup within the first 1000 revolutions. Possible causes include faulty spark plugs, ignition coils, fuel injectors, or issues with the ignition system.

3. How can I diagnose the OBDII code P0316 in my Mercury?

- To diagnose the code P0316, you may need to perform a thorough inspection of the ignition system components, including spark plugs, ignition coils, and fuel injectors. A scan tool can help identify the specific cylinder(s) experiencing the misfire.

4. Can a dirty air filter trigger the OBDII code P0316 in a Mercury?

- While a dirty air filter may not directly cause the code P0316, it can affect the air-fuel mixture entering the engine, potentially leading to misfires and related issues. It is advisable to check and replace a dirty air filter as part of routine maintenance.

5. How can I repair OBDII code P0316 in my Mercury?

- Repairing the code P0316 typically involves addressing the underlying cause of the misfire detected on startup. This may include replacing faulty spark plugs, ignition coils, or fuel injectors, as well as ensuring proper functioning of the ignition system components.

6. Is it safe to continue driving my Mercury with OBDII code P0316?

- It is not recommended to continue driving your Mercury with code P0316, as unresolved misfires can lead to potential damage to the engine and other components. It is advisable to address the issue promptly to prevent further problems.

7. Can a low fuel pressure cause the OBDII code P0316 in a Mercury?

- Yes, low fuel pressure can contribute to misfires and trigger the OBDII code P0316 in a Mercury. It is essential to check the fuel pressure and fuel delivery system as part of diagnosing and repairing the issue.

8. Will resetting the OBDII code P0316 in my Mercury make it go away permanently?

- Resetting the code P0316 may clear the warning temporarily, but if the underlying issue causing the misfire on startup is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem for a permanent solution.

9. Can a faulty crankshaft position sensor trigger the OBDII code P0316 in a Mercury?

- Yes, a faulty crankshaft position sensor can contribute to misfires and trigger the OBDII code P0316 in a Mercury. It is advisable to inspect and test the sensor as part of diagnosing the misfire detected on startup.

10. Is it necessary to take my Mercury to a mechanic for OBDII code P0316 diagnosis and repair?

- While some DIY enthusiasts may be able to diagnose and repair the code P0316 themselves, it is recommended to seek professional help, especially if you are not familiar with engine diagnostics and repair. A qualified mechanic can accurately identify the issue and provide necessary repairs to resolve the misfire detected on startup.

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