my 1999 ,3500 dodge ctd is acting up again . the ctd runs good and then when i go to start it again, the motor starts, but has no throttle responce. this has happened 3 times. the first time i had this problem was i was on the freeway and i had no throttle responce at about 2400 rpm . then applying more throttle peddle ,it then picked up speed then repeated the same thing . the check engine lite came on. so i took it to a dealer and thay replaced the apps(tps) sensor that was at 75,000 miles. things went fine for a while then at 100,000 miles the ctd would start then would not have any throttle responce. i unplugged the batterys for 6 hrs then reset the tps as discribeb in tdr posts that worked fine . . yesterday i turned the pu off and when i restarted it , i had NO THROTTLE RESPONCE AGAIN , i removed the ground wires on both battery again and waited 2 hrs then reset the tps this time the ctd had 106,000 miles on it. a while ago i replaced the fuel pump with a aftermarked mod. relocated it to infront of the fuel tank and has had 12- 13 lbs pressure there after. with 10 lbs at wot. ANY HELP WOULD BE OF GREAT IMPORTANCE TO ME, I LIVE 45 MILES AWAY FROM TOWN AND IM GETTING TO NOT TRUST THE GREAT CUMMINS. THANKS JIM