Fault-Code Library · Combustion
P0302: Cylinder 2 misfire detected
The ECU detected repeated combustion misfires on cylinder 2.
Common symptoms
- •Rough idle
- •Flashing warning light
- •Hesitation
- •Unburned fuel smell
Likely causes
- •Ignition coil or spark plug fault
- •Injector problem
- •Compression issue
- •Intake leak near cylinder 2
First checks
- •Read misfire counters after a cold start and road test
- •Swap ignition parts only to prove movement
- •Check injector operation and mechanical compression
Important
Do not keep driving a flashing misfire light; catalyst damage can follow quickly.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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