P0302 Fault Code

Cylinder 2 Misfire Detected

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0302 fault code indicates that the engine control module (ECM) has detected a misfire in cylinder 2. A misfire occurs when the air-fuel mixture in the cylinder does not ignite correctly, leading to loss of power, increased emissions, and potential damage to the engine if left unaddressed.

What are the symptoms of the P0302 code?

• Rough engine idle or vibrations while driving.
• Decrease in engine power and acceleration.
• Check Engine Light (CEL) illuminated on the dashboard.
• Increased fuel consumption.
• Possible engine shaking or unusual noises.

What causes the P0302 code?

• Worn or faulty spark plug in cylinder 2.
• Faulty ignition coil for cylinder 2.
• Vacuum leak affecting cylinder 2.
• Fuel injector malfunction in cylinder 2.
• Compression issues within cylinder 2.
• Wiring or connector problems related to the ignition system.

How to fix P0302?

• Inspect and replace the spark plug in cylinder 2 if necessary.
• Test and replace the ignition coil for cylinder 2 if faulty.
• Check for vacuum leaks near cylinder 2 and seal if needed.
• Test the fuel injector and clean or replace if malfunctioning.
• Perform a compression test on cylinder 2 to check for internal issues.
• Examine wiring and connectors for any damage or corrosion.