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P0121 Diagnostic Trouble Code Discussion for January 2013

Throttle Position Sensor Does Not Agree With MAP

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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
2007 Chevrolet Impala LTZ 3.9L High idle VIN: 2G1WU58R77
P0121: TP Sensor 1 Signal Circuit Malfunction. Okay G.M. guys. Customer complaint check engine light and engine surge. We noticed that idle will climb to 2,200 rpm if! you touch the gas pedal. Bring it down by shifting into drive while holding your foot on the brake. Cleaned throttle, performed idle relear...
January 18, 2013
2000 Hyundai Elantra GLS 2.0L Hesitation, Cuts out, Stall, MIL Lamp on VIN: KMHJF35F4Y
P0121: Throttle Position Sensor Circuit Range/Performance. came in for check engine lite on and runs rough did pinpiont tests on tps and found all circuits ok idles fine but as soon as you depress gas pedal bogs out and almost dies replaced tps no change replaced idle air motor no change reset ecm by disconnecting neg...
January 18, 2013
2009 Chevrolet Express 2500 4.8L MIL Lamp on VIN: 1GCGG25CX9
P0121: acelerator pedal postion circuit. mil light on, po121 acceleration pedal position circuit, is there a campaign/recall for this fault. Scantested vehicle throttle body motor works fine and accelerator pedal looks fine, electrical connectors in good shape. Is there a common fix for this code or ...
January 24, 2013
2002 Hyundai Elantra GT 2.0L MIL Lamp on, Bump downshift VIN: KMHDN55DX2
P0121: Throttle Position Sensor Circuit Range/Performance. ... with code P0121 triggered. TPS has been replaced twice, check engine light came back on in a few days both times. Occasionally when driving the vehicle it will downshift with a bump around 40-45mph. Anyone seen this?
January 25, 2013