P2308
PowertrainIgnition Secondaryhigh severityIgnition Coil H Secondary Circuit
What P2308 Means
Fault in ignition coil H secondary circuit (cylinder 8 on V8).
Symptoms
- Cylinder 8 misfire
- Check engine light
Common Causes
- Failed coil
- Worn spark plug
Diagnostic Steps
- Coil swap test
- Check plug condition
Where to start: Replace coil and plug as needed.
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