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P0121 Diagnostic Trouble Code Discussion for October 2007

Throttle Position Sensor Does Not Agree With MAP


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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
1997 Chevrolet Venture LS 3.4L Poor Idle Quality, Misfire VIN: 1GNDX03EXV
P0121: tps voltage signal. Vehicle came in running bad with a coolant leak in the lwr intake. I replaced the intake gaskets rockers and pushrods. No more coolant leak, but it still runs rough at idle. I smoked the system and can't find any leaks. Under a load It runs good, but idles ver...
October 13, 2007
1997 Chevrolet Venture LS 3.4L Poor Idle Quality, Misfire VIN: 1GNDX03EXV
P0121: tps voltage signal. Vehicle came in running bad with a coolant leak in the lwr intake. I replaced the intake gaskets rockers and pushrods. No more coolant leak, but it still runs rough at idle. I smoked the system and can't find any leaks. Under a load It runs good, but idles ver...
October 15, 2007
1998 Dodge Ram 2500 Truck 5.9L Surge, Stall VIN: 1B7KC236XW
P0121: Throttle Position Sensor Does Not Agree With MAP. Hello need help with intermittent surge stall slowing down customer states rpm would drop down to o rpm and would have to feather throttle to pick back up may only happen one time then go 2weeks and start again and go away scaned code po121 was stored in histo...
October 17, 2007
2001 Dodge Ram 3500 Van 5.9L MIL Lamp on VIN: 2B6LB31ZX1
P0121: Throttle Position Sensor Does Not Agree With MAP. This van has a hard code P0123(TPS volt high). Data(Two different snapon scanners) shows 4.98v at closed throttle, Limpin=TPS FLT, Throttle%=89, Min TPS=0.78, MAP=1.1v(at idle), and Man Vac=19.5. These are from today, yesterday the TPS voltage would vary from ...
October 24, 2007
1997 Chevrolet Venture LS 3.4L Poor Idle Quality, Misfire VIN: 1GNDX03EXV
P0121: tps voltage signal. Vehicle came in running bad with a coolant leak in the lwr intake. I replaced the intake gaskets rockers and pushrods. No more coolant leak, but it still runs rough at idle. I smoked the system and can't find any leaks. Under a load It runs good, but idles ver...
October 13, 2007
1997 Chevrolet Venture LS 3.4L Poor Idle Quality, Misfire VIN: 1GNDX03EXV
P0121: tps voltage signal. Vehicle came in running bad with a coolant leak in the lwr intake. I replaced the intake gaskets rockers and pushrods. No more coolant leak, but it still runs rough at idle. I smoked the system and can't find any leaks. Under a load It runs good, but idles ver...
October 15, 2007
1998 Dodge Ram 2500 Truck 5.9L Surge, Stall VIN: 1B7KC236XW
P0121: Throttle Position Sensor Does Not Agree With MAP. Hello need help with intermittent surge stall slowing down customer states rpm would drop down to o rpm and would have to feather throttle to pick back up may only happen one time then go 2weeks and start again and go away scaned code po121 was stored in histo...
October 17, 2007
2001 Dodge Ram 3500 Van 5.9L MIL Lamp on VIN: 2B6LB31ZX1
P0121: Throttle Position Sensor Does Not Agree With MAP. This van has a hard code P0123(TPS volt high). Data(Two different snapon scanners) shows 4.98v at closed throttle, Limpin=TPS FLT, Throttle%=89, Min TPS=0.78, MAP=1.1v(at idle), and Man Vac=19.5. These are from today, yesterday the TPS voltage would vary from ...
October 24, 2007