- Faulty Fuel Pressure Regulator (FPR): The FPR is responsible for maintaining the correct fuel pressure in the engine's fuel system. If the FPR is malfunctioning, it can lead to low fuel pressure, which can cause the engine to run lean and stall.
- Clogged Fuel Injectors: Clogged fuel injectors can prevent fuel from being properly delivered to the engine's cylinders, leading to a lean condition and potential stalling.
- Vacuum Leak: A vacuum leak can cause the engine to run lean, as unmetered air enters the engine, affecting the air-fuel mixture. This can lead to stalling and poor performance.
- Faulty Oxygen Sensor: A faulty oxygen sensor can provide incorrect feedback to the engine's computer (ECU), leading to incorrect fuel trim adjustments. This can cause the engine to run lean or rich, potentially causing stalling.
- Ignition System Issues: Problems with the ignition system, such as worn spark plugs, faulty spark plug wires, or a failing ignition coil, can disrupt the proper combustion of fuel, leading to stalling.
- Catalytic Converter Issues: A clogged or damaged catalytic converter can restrict exhaust flow, causing the engine to run poorly and potentially stall.
Diagnosing the exact cause of the stalling issue requires further investigation and testing. It's recommended to seek assistance from a qualified mechanic who can perform diagnostic tests and identify the root cause of the problem.
