- Fuel pressure: When fuel pressure is too low, the engine won’t get the fuel it needs to start and run properly.
- Fuel pump: If the fuel pump is not working properly, it will not deliver fuel to the engine, causing the engine to start and then stall.
- Fuel filter: If the fuel filter is clogged, then the fuel flow to the engine can become restricted.
- Fuel injectors: If the fuel injectors are not working properly, they may not be delivering enough fuel to the engine for combustion.
- Throttle body: If the throttle body is dirty, it can disrupt proper air/fuel mixture and prevent the engine from starting.
- Crankshaft position sensor: If the crankshaft position sensor is faulty, the engine may not get adequate fuel injection and ignition timing.
- Mass air flow sensor: If the air-fuel mixture isn't correctly regulated due to a faulty mass airflow sensor, starting or staying running may be difficult.