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P0121 Diagnostic Trouble Code Discussion for October 2004

Throttle Position Sensor Does Not Agree With MAP

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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
2001 Dodge Ram 2500 5.9L Cuts out VIN: 1B7KC23791
P0121: APPS voltage input below the minimum acceptable voltage. ... pump,injection pump and fuel filter have been replaced. Checked for air by installing clear fuel line at injection pump inlet. None seen. Check the fuel pressure running, 16 psi. Sometimes will give DTC of P0121 (APPS input voltage below minimum acceptable...
October 05, 2004
1997 Chevrolet Astro 4.3L MIL Lamp on
P0121: TP Sensor Performance. Hello all, This truck has had an intermittent problem with this circuit (po121). I reviewed the freeze frame for the code and didn't perceive a problem. I'm a bit unclear about this situation. I followed the flow chart from Nodata and ofcourse came up with sy...
October 28, 2004