Engine Hard Starting
- Incorrect "cold" control pressure (CIS).
- Auxiliary air valve does not open.
- Cold start injector does not open.
- Cold start injector leaking.
- Incorrectly adjusted sensor plate stop (CIS).
- Incorrectly adjusted throttle switch (AFC).
- Vacuum leak(s).
- Fuel leak(s).
- Thermo time switch does not close.
- Faulty air flow meter potentiometer (AFC).