P0302: Cylinder 2 Misfire Detected
Short answer: P0302 means “Cylinder 2 Misfire Detected”. It is a standard OBD-II code, so the basic meaning is the same on every car. Below is what it means on each of the 7 cars we cover, with a link to the full page for each car.
Standard OBD-II code Same meaning on all cars (SAE J2012).
P0302 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Passo (1st gen) | Misfire cyl 2 (EU spec) (P0302/17) | high |
| Toyota Vitz (1st gen) | Misfire in cylinder 2 | medium |
| Toyota Corolla (11th gen, E170) | Cylinder 2 Misfire Detected | medium |
| Toyota Corolla (10th gen, E140) | Cylinder 2 Misfire Detected | medium |
| Honda City (5th gen, GM2) | Cylinder 2 Misfire Detected | medium |
| Honda Civic (10th gen, FC) | Cylinder 2 Misfire Detected | medium |
| Suzuki Wagon R (Pakistan, K10B) | Cylinder 2 Misfire Detected | medium |
Symptoms
- Check engine light on
Likely causes
- Defective ignition coil(s)
- Bad spark plug(s), spark plug wires, or spark plug boots
- Faulty fuel injector(s)
- Malfunctioning fuel delivery system (fuel pump, fuel pump relay, fuel injectors, or fuel filter)
- Major engine vacuum leak
- EGR valve stuck in the wide open position
- Clogged EGR ports
What to check, in order
- Read the code and freeze-frame data with an OBD-II scanner
- Check the connector and wiring of the part named in the code
- Test the part with scanner live data or a multimeter, using the values in the repair manual
- Fix the cause, clear the code and test-drive
Causes and checks above are the general meaning. The exact test steps and values differ by car: open your car’s page.