Engine Will Not Start or Difficult Starting

1. Insufficient fuel supply.
2. Faulty ignition system.
3. Open resistor.
4. Open or shorted injector.
5. Defective fuel pump.
6. Defective control relay. Open L3 coil in control relay.
7. Defective ECU.
8. Shorted, grounded, or open coolant temperature sensor.
9. Defective fast idle mechanism.