Rough/Unstable Idle or Stalls

1. Malfunctioning MPI system.
2. Malfunctioning injector.
3. Malfunctioning idle switch.
4. Disconnected or damaged vacuum hose.
5. Malfunctioning power transistor.
6. Malfunctioning idle position switch.
7. Improper fuel pressure.
8. Malfunctioning fuel pressure control system.
9. Malfunctioning intake air temperature sensor.
10. Malfunctioning inhibitor switch.
11. Malfunctioning power steering oil pressure switch.
12. Malfunctioning a/c switch.
13. Malfunctioning vehicle speed sensor.
14. Broken, shorted or improperly secured harness connector.
15. Malfunctioning air flow sensor.
16. Malfunctioning coolant temperature sensor.
17. Malfunctioning atmospheric pressure sensor.
18. Malfunctioning motor position sensor.