yes the TV can be stuck open many ways
throttle valve stuck (open)
hacked by hackers on the illegal screw (called TV idle stop screw, is a factory calibration)
all cables to the TV set wrong , must be slacked at idle (throttle , cruise and A/t tranny , were opted)
TV gunk'ed up
the bleed screw top rear, can be missing, hackers, error1. or unscrewed 99% this is not idle speed set, it is idle duty cycle setting for the ISC.
the bleed screw puts the ISC in the center of its authority. (FSM book pages , with DUTY cycle read)
throttle valve stuck (open)
hacked by hackers on the illegal screw (called TV idle stop screw, is a factory calibration)
all cables to the TV set wrong , must be slacked at idle (throttle , cruise and A/t tranny , were opted)
TV gunk'ed up
the bleed screw top rear, can be missing, hackers, error1. or unscrewed 99% this is not idle speed set, it is idle duty cycle setting for the ISC.
the bleed screw puts the ISC in the center of its authority. (FSM book pages , with DUTY cycle read)
http://www.fixkick.com