1. Fuel Pump Failure:
- Symptoms: The engine may stall while driving, especially when making turns or going uphill.
- Diagnosis: Check the fuel pressure to see if it is within specifications.
2. Catalytic Converter Failure:
- Symptoms: The car may lose power, hesitate or jerk while driving, and the exhaust may emit a strong sulfur-like odor.
- Diagnosis: Visual inspection for damage or blockages, and check engine light codes (may not always indicate converter issues).
3. Crankshaft Position (CKP) Sensor Failure:
- Symptoms: The engine may stall while driving, and restarting the car may be difficult or impossible.
- Diagnosis: Check for CKP sensor codes, inspect sensor and wiring for damage, and test sensor output voltage.
4. Cam Position (CMP) Sensor Failure:
- Symptoms: Similar to CKP sensor failure, with engine stalling while driving and issues with restarting.
- Diagnosis: Check for CMP sensor codes, inspect sensor and wiring, and test sensor signal.
5. Ignition Coil or Spark Plug Failure:
- Symptoms: The car may experience misfires, poor acceleration, and rough idling.
- Diagnosis: Check for misfire codes, inspect ignition coils and spark plugs for cracks, deposits, or damage.
6. Fuel Injector Failure:
- Symptoms: Engine may run rough, misfire, or hesitate during acceleration.
- Diagnosis: Check for fuel injector codes, perform injector resistance and flow tests, and listen for ticking sounds from injectors.
