Code result
P0316
Misfire Detected on Startup
High severity
What it means
The misfire monitor detected misfires during the first 1000 revolutions after startup but the engine then settled. Often caused by fouled spark plugs that warm up clean, weak ignition coils, or a borderline cold-start fuel mixture.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Spark plugs fouled when cold
highOne of the most commonly reported causes for this code — check this first.
Ignition coil weak below operating temperature
mediumA plausible cause — test and verify before replacing parts.
Cold-start mixture too lean (fuel pressure, leaking injectors at rest)
mediumA plausible cause — test and verify before replacing parts.
Related help
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