No Start - Cold Engine
- Ensure spark plugs fire.
- Check ignition and sensor wires for proper connection.
- Check ignition coil circuit.
- Ensure fuel pressure is correct.
- Check fuel injectors.
- Check airflow sensor.
- Check engine speed (reference point) sensor.
- Check cylinder identification sensor.
- Check vehicle (road) speed sensor.
- Check DME/Motronic control unit.