There is a list of possible causes for this. Let me know which you have already checked.
Throttle position sensor (TSP) sensor sweep
5 volt supply circuit open
5 volt supply circuit shorted to ground
TPS 1 signal circuit shorted to ground
TPS 1 signal circuit shorted to the sensor ground circuit
Transmission control module
Sunday, August 17th, 2014 AT 7:25 PM