P0302 means cylinder 2 misfire detected. Cylinder 2 isn't firing properly. Like all single-cylinder misfires, the fix is usually the spark plug, ignition coil, o
Drive gently and get it diagnosed within days.
Cylinder 2 isn't firing properly. Like all single-cylinder misfires, the fix is usually the spark plug, ignition coil, or fuel injector serving that cylinder.
Cheapest and most common fix.
Confirm by swapping coils between cylinders.
Fuel delivery issue isolated to cylinder 2.
Mechanical wear — rarer.
Unmetered air leaning one cylinder.
Typically $100–$500
Single plug/coil typically $100–$300; injector work typically $150–$400. Estimates vary by vehicle. Costs are estimates and vary by vehicle, location, and shop.
Okay for short trips, but fix within days — raw fuel from the misfire can overheat the catalytic converter.
Typically $100–$500. Single plug/coil typically $100–$300; injector work typically $150–$400. Estimates vary by vehicle.
Drive gently and get it diagnosed within days.
The most common cause is worn spark plug in cylinder 2. Cheapest and most common fix.