The P0302 engine code, also known as a diagnostic trouble code (DTC), indicates that the powertrain control module (PCM) has detected frequent misfires in cylinder 2 of your vehicle's engine. Misfires can happen when the air-fuel mixture in the combustion chamber doesn't ignite properly, which can be caused by a number of issues. Some common causes include: A faulty fuel injector or injector circuit, A malfunctioning coil pack, A worn spark plug, and Engine timing.
Symptoms of a P0302 code include: Poor engine performance, A rough or choppy engine, A strange smell, and A flashing check engine light.
Some common fixes for a P0302 code include: Replacing the spark plugs, Replacing the ignition coil pack, Cleaning or replacing the fuel injectors, Replacing faulty components like valve cover gaskets, and Replacing the cylinder head gasket.
You can also check for loose connections between the spark plugs, spark plug wires, the coil, and the distributor. You can also look for frayed wires and check the spark plugs for signs of fouling with oil or fuel. If your vehicle has individual coil packs at each cylinder, you can try removing one coil pack from the misfiring cylinder and one from a working cylinder. You can also check the fuel pressure to make sure each cylinder is getting the right amount of fuel.
A cylinder misfire can be a serious issue that could damage your engine, so it's important to get it inspected and fixed quickly if you suspect you have one.
