P0316
PowertrainIgnition Misfiremoderate severityEngine Misfire Detected on Startup (First 1000 Revolutions)
What P0316 Means
Misfire detected during the first 1000 engine revolutions after startup.
Symptoms
- Check Engine Light after cold start
- Rough start then smooths out
- Stumble on startup
Common Causes
- Leaking fuel injector (dripping when off)
- Loss of fuel pressure after shutdown
- Spark plug fouled from previous shutdown
Diagnostic Steps
- Perform fuel pressure leak-down test
- Check injectors for leaks
- Inspect spark plugs
- Monitor misfire counts on cold start
Where to start: Check for leaking injectors. Replace fouled spark plugs.
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