Rough/Unstable Idle or Stalls

1. Carburetor choke malfunction.
2. Incorrect fast idle speed during cold engine operation.
3. Incorrect curb idle speed.
4. Malfunctioning electric choke.
5. Clogged primary pilot jet.
6. Malfunctioning dashpot.
7. Malfunctioning slow cut solenoid valve.
8. Malfunctioning engine coolant temperature sensor.
9. Disconnected or damaged vacuum hose.
10. Malfunctioning throttle position sensor.
11. Malfunctioning engine speed sensor.
12. Malfunctioning timing control system.
13. Malfunctioning throttle opener control system.
14. Broken, short circuited or incorrectly connected harness connector.