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P0123 Diagnostic Trouble Code Discussion for October 2007

Throttle Position Sensor/APPS High

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Trouble Ticket Help Requests for DTC P0123
Help Request Posted
1999 Oldsmobile Alero GLS 3.4L No Start, Poor Idle Quality, Stall VIN: 1G3NF12E0X
P0123: TP Sensor Circuit High Voltage. This car has a whole host of symptoms that occur intermittently. At times it won't start, or dies when running. Sometimes it idles normally, other times it idles above 2500 rpm. It had a whole list of codes when we first got it in, and the ones I listed return...
October 18, 2007
2001 Dodge Ram 3500 Van 5.9L MIL Lamp on VIN: 2B6LB31ZX1
P0123: Throttle Position Sensor Circuit High Voltage. 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