Engine Stalls: Cold
- Ensure air filter element is clean.
- Check fuel filter for restriction.
- Check EGR valve condition and operation.
- Check for mass airflow sensor or IAC valve malfunction.
- Ensure fuel system pressure is correct.
- Check air intake system for vacuum leaks.
- Check coolant temperature sensor resistance.
- Verify correct throttle position sensor adjustment.
- ECM/PCM malfunction.