1. Spark Plugs: Check the condition of your spark plugs. Worn-out or fouled spark plugs can cause misfires and rough idling.
2. Fuel System Issues: A clogged fuel filter or a faulty fuel pump can restrict the fuel flow to the engine, causing rough running.
3. Ignition Coil: A faulty ignition coil can cause misfires and rough running.
4. Vacuum Leak: A vacuum leak in the engine can lead to lean running conditions and rough idling. Check for any loose or damaged vacuum hoses.
5. Oxygen Sensor: A faulty oxygen sensor can provide incorrect feedback to the engine control unit (ECU), affecting the air-fuel mixture and causing rough running.
6. Engine Temperature Sensor: A malfunctioning engine temperature sensor can provide incorrect information to the ECU, affecting the fuel injection and ignition timing, leading to rough running.
7. Catalytic Converter: A clogged catalytic converter can restrict the exhaust flow and cause rough running.
8. Mass Air Flow (MAF) Sensor: A faulty MAF sensor can provide incorrect information about the amount of air entering the engine, affecting the air-fuel mixture and causing rough running.
9. Crankshaft Position Sensor: A faulty crankshaft position sensor can affect the ignition timing and cause rough running.
10. Fuel Injector: A clogged or faulty fuel injector can cause misfires and rough idling.
It is recommended to have your car diagnosed by a qualified technician with access to diagnostic tools to identify the exact cause of the problem.
