Vehicles using AWY engine list:

Engine AWY

Symptoms:
- Rough idling and occasional stalling
- Reduced engine power and poor acceleration
- Increased fuel consumption
- Check Engine Light (CEL) illumination
- Difficulty starting the engine, especially in cold conditions

Diagnosis:
- Inspect ignition components such as spark plugs, ignition coils, and leads for wear or damage
- Check for vacuum leaks around intake manifold and hoses
- Scan for fault codes using an OBD-II scanner to identify sensor or actuator issues
- Test the fuel system pressure and fuel injectors for proper operation
- Examine the timing belt condition and tension, as wear can affect engine timing
- Verify the operation of the idle air control valve (IACV) and throttle body cleanliness

Fixes:
- Replace worn or fouled spark plugs and faulty ignition coils to restore proper combustion
- Repair or replace cracked or leaking vacuum hoses to eliminate air leaks
- Clean or replace the idle air control valve and throttle body to ensure smooth idling
- Replace the timing belt if it shows signs of wear or has exceeded the recommended service interval
- Repair or replace faulty sensors such as the mass airflow sensor (MAF) or oxygen sensors as indicated by diagnostic codes
- Clean fuel injectors or replace the fuel filter to maintain optimal fuel delivery

Prevention:
- Follow the manufacturer’s recommended maintenance schedule for timing belt replacement (typically every 60,000 to 90,000 km)
- Regularly inspect and replace spark plugs and ignition components as needed
- Use quality fuel and periodically add fuel system cleaner to prevent injector clogging
- Keep the air intake system clean and free of debris to avoid sensor contamination
- Address any Check Engine Light warnings promptly to prevent further engine damage
- Perform routine vacuum leak checks during servicing to maintain engine efficiency