What does Error Code P0316 mean?
Moderate Issue
DTC Code P0316 indicates an Engine Misfire Detected on Startup, triggered when the Engine Control Module (ECM) detects a misfire during the first 1,000 revolution test interval after engine start, monitored via the Crankshaft Position (CKP) sensor signal.
What are the symptoms of Error Code P0316?
- Engine Light ON: The check engine light or service engine soon warning light illuminates, indicating a detected issue with the engine. This is often linked to misfires occurring during startup.
- Engine Fails to Start: The engine may struggle or fail to start, which is a common symptom of a misfire detected during the initial startup phase.
- Engine Runs Rough: The engine may run unevenly or roughly, especially noticeable during startup, which is indicative of a misfire condition.
What causes Error Code P0316?
- Issues with the crankshaft position sensor, such as faults or poor electrical connections, can lead to incorrect timing signals, causing startup misfires.
- Problems in the ignition system, including worn spark plugs or faulty ignition coils, can prevent proper combustion during startup.
- Fuel injector malfunctions can result in inadequate fuel delivery, leading to misfires when the engine is started.
- Running out of fuel or using poor quality fuel can cause insufficient combustion, resulting in startup misfires.
- A malfunctioning Engine Control Module (ECM) can disrupt the engine's ability to manage fuel and ignition timing, leading to misfires.
Find the Root Cause with AI
Analyze symptoms and error codes with artificial intelligence for a precise diagnosis
Fast Diagnosis in under 3 minutes
Precise AI-powered analysis
Free No hidden fees
Data-Driven Over 40,000 reference cases
How to fix Error Code P0316?
- Initial Code Verification: Verify the presence of DTC P0316 using an OBD-II scanner. Check for any additional misfire codes (P0300-P0312) that may indicate specific cylinders affected.
- Inspect Ignition System: Examine spark plugs, ignition coils, and wires for wear or damage. Replace any faulty components to ensure proper ignition.
- Fuel System Check: Inspect fuel injectors for clogs or leaks. Ensure proper fuel pressure and delivery to the engine. Clean or replace injectors if necessary.
- Examine Engine Sensors: Check the crankshaft position sensor and camshaft position sensor for proper operation. Faulty sensors can lead to incorrect timing and misfires.
- Compression Test: Perform a compression test on all cylinders to ensure they are within manufacturer specifications. Low compression can cause misfires.
- Check for Vacuum Leaks: Inspect the intake manifold and vacuum lines for leaks that could affect air-fuel mixture and cause misfires.
- Review Engine Control Module (ECM): Ensure the ECM is functioning correctly and has the latest software updates. Faulty ECMs can misinterpret sensor data, leading to misfires.