1. Fuel Issues:
- Low fuel pressure or a faulty fuel pump could cause the engine to lose power and eventually stall.
- Clogged fuel filter or fuel injectors can also restrict fuel flow.
- Check fuel pressure and examine the fuel filter and injectors.
2. Electrical Problems:
- Faulty ignition system components such as spark plugs, spark plug wires, or distributor cap and rotor (if applicable).
- Check and replace as needed.
- Bad ignition coil or ignition module.
- Battery or alternator problems can also affect the electrical system.
- Inspect and test battery and charging system.
3. Air Intake System Issues:
- Air filter clogged or dirty, restricting airflow to the engine.
- Clean or replace the air filter as needed.
- Leaking or cracked air intake hoses or pipes can also cause power loss.
- Check and repair/replace as needed.
4. Exhaust System Issues:
- Clogged or restricted exhaust system, preventing efficient exhaust flow.
- Examine the exhaust system for blockages or damage.
5. Mechanical Issues:
- Problems like worn engine components (e.g., rings, bearings, etc.) or low compression can lead to power loss and stalling.
- A compression test can help identify such issues.
6. Sensor Problems:
- Faulty sensors such as the oxygen sensor, MAF (mass airflow) sensor, or MAP (manifold absolute pressure) sensor can provide incorrect data, affecting engine performance.
- Diagnose using scan tool and replace sensors if necessary.
Start by inspecting and testing the most accessible parts related to the symptoms. If you find nothing, you may need more advanced tools or a mechanic's assistance to perform further diagnostics.
