1. Fuel Pump Failure: A faulty fuel pump may not provide enough fuel to the engine, causing it to stall.
2. Clogged Fuel Filter: A clogged fuel filter can restrict the flow of fuel, leading to engine starvation and stalling.
3. Fuel Injector Issues: Malfunctioning fuel injectors can cause irregular fuel delivery, resulting in stalling.
4. Fuel Line Problems: Leaks or blockages in the fuel lines can disrupt the fuel supply to the engine.
Ignition-related issues:
1. Spark Plug Failure: Worn-out or faulty spark plugs can lead to misfires and stalling.
2. Ignition Coil Problems: A faulty ignition coil may not generate sufficient voltage for the spark plugs, causing the engine to stall.
3. Distributor Cap or Rotor Issues: Problems with the distributor cap or rotor can affect spark delivery, leading to stalling.
Electrical issues:
1. Battery Problems: A weak or failing battery may not provide enough power for essential electrical components, resulting in a stall.
2. Alternator Issues: A faulty alternator can fail to charge the battery, leading to power loss and stalling.
3. Wiring Issues: Loose or damaged wiring can cause electrical malfunctions and disrupt the engine's operation, leading to stalling.
Mechanical issues:
1. Vacuum Leaks: Air leaks in the vacuum hoses can disrupt the air-fuel mixture, causing the engine to stall.
2. Throttle Issues: Problems with the throttle body, linkage, or sensors can affect air and fuel flow, leading to stalling.
3. Engine Sensor Failures: Malfunctioning sensors (such as the crankshaft position sensor or oxygen sensor) can provide incorrect data to the engine control system, causing stalling.
4. Internal Engine Problems: Severe engine wear, such as piston ring issues, compression loss, or excessive bearing clearance, can also contribute to stalling.
It's essential to have a qualified mechanic diagnose the exact cause of the stalling issue in your Datsun 280Z to ensure a proper and safe repair.
