P0302
Cylinder 2 Misfire Detected
high
i Description
The ECU has detected a misfire specifically in cylinder 2. Same causes and approach as P0301 but for cylinder 2.
? Common Causes
- Worn or fouled spark plug in cylinder 2
- Faulty ignition coil for cylinder 2
- Damaged spark plug wire/boot
- Faulty fuel injector for cylinder 2
- Low compression in cylinder 2
! Symptoms
- Check engine light (may flash)
- Engine vibration
- Loss of power
- Rough idle
# Diagnostic Steps
- Inspect spark plug from cylinder 2
- Swap ignition coil with another cylinder
- Test fuel injector
- Compression test on cylinder 2
⚙ Typical Fix
Replace the spark plug and/or ignition coil for cylinder 2.
Parts Needed
Spark plug, Ignition coil
Estimated Cost
$50-$400
↔ Related Codes
Q Frequently Asked Questions
Same as P0301 — do not drive if the light is flashing. A steady light allows careful driving to a mechanic.
☞ Learn More
- What is OBD-II? — Complete guide to your car's diagnostic system
- How to Read DTC Codes — Step-by-step with a Bluetooth scanner
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