I have a 98 Dodge ram 5.9, presently it won't start unless you put your foot to the floor and then it will start and revs and runs smooth as long as you keep the rpms up but as soon as you let off the gas it dies and won't start again unless you put your foot on the floor. Any ideas as to what's going on here? Could a bad throttle position sensor cause this? Ideas please, thanks.
Ken