Throttle Controller Time Cannot Be Increased
- Test throttle positioner solenoid valve for voltage. If voltage exists, it indicates either a failed throttle opener solenoid valve or a failed throttle control valve.
- Disconnect vacuum hose to throttle opener diaphragm and check for vacuum. If vacuum is present, replace throttle control valve and retest. If no vacuum is present, replace throttle opener solenoid valve and retest.