Engine Stalls
- Ensure air intake system is unrestricted.
- Ensure PCV system operation is correct.
- Check EGR system for correct operation.
- Check for distortion or cracks in fuel injector(s) plastic connecting flange(s).
- Check idle stabilizer operation.
- Check for cracks or poor connections at throttle body.
- Check auxiliary air by-pass regulator.
- Check cold start valve for leaking (engine warm).
- Check throttle valve switch.
- Check coolant temperature sensor operation.
- Ensure fuel system pressure is correct.
- Check for poor quality fuel, fuel with high alcohol content or contaminated fuel.