P0316 Fault Code

Misfire Detected On Startup (First 1000 Revolutions)

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0316 fault code indicates that a misfire has been detected during the engine's startup phase, specifically within the first 1000 revolutions. This can lead to various performance issues if not addressed promptly.

• Misfires can cause a rough idle, decreased power, and may trigger the Check Engine Light.
• This code typically points to issues in the ignition system, fuel delivery system, or engine mechanical components.

What are the symptoms of the P0316 code?

Drivers may experience the following symptoms when a P0316 code is present:

• Rough idle or stalling during startup.
• A noticeable decrease in engine performance and acceleration.
• The Check Engine Light illuminates on the dashboard.
• Unusual engine noises during startup.

What causes the P0316 code?

There are several potential causes for a P0316 fault code, including:

• Faulty spark plugs or ignition coils that fail to ignite the air-fuel mixture.
• Issues with fuel injectors or fuel delivery, which may not provide enough fuel to the engine.
• Vacuum leaks that disrupt the air-fuel mixture ratio.
• Malfunctioning sensors such as the crankshaft position sensor or camshaft position sensor.
• Internal engine problems like low compression or timing issues.

How to fix P0316?

To resolve a P0316 fault code, follow these steps:

• Perform a thorough inspection of the ignition system, including spark plugs and ignition coils, replacing any faulty components.
• Check the fuel delivery system, ensuring that fuel injectors are functioning properly and that there are no blockages.
• Inspect for vacuum leaks using a smoke machine or visual inspection, correcting any found leaks.
• Test the crankshaft and camshaft position sensors, and replace if faulty.
• Evaluate the engine's compression and timing to rule out mechanical issues.