P2301
PowertrainIgnition Secondaryhigh severityIgnition Coil A Secondary Circuit
What P2301 Means
Fault detected in the secondary winding circuit of ignition coil A (cylinder 1).
Symptoms
- Misfire
- Check engine light
- Poor performance
Common Causes
- Failed ignition coil
- Cracked coil boot
- Spark plug gap too wide
Diagnostic Steps
- Swap coil to different cylinder
- Check spark plug
- Inspect coil boot for carbon tracking
Where to start: Replace ignition coil. Check spark plug condition.
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