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P0121 Diagnostic Trouble Code Discussion for August 2008

Throttle Position Sensor Does Not Agree With MAP


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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
2000 Volkswagen Beetle GLS 2.0L No Start, Stall VIN: 3VWCA21C8Y
P0121: Throttle/Pedal Sensor A circuit. I have a 2000 VW Beetle with a 2.0 engine that will not stay running. It attempts to start then stalls out. I understand that the ecm may need be reset according to a TSB I found, however I am unable to find the procedure. I am limited in equipment, using an O...
August 13, 2008
2001 Hyundai Santa Fe GLS 2.7L Surge, Cuts out, MIL Lamp on VIN: KM8SC83D41
P0121: Throttle Position Sensor Circuit Range/Performance. ... replaced the tps. it had a tps p0121 code and cutsout. The engine feels like it returned to Idle about the time it shifted into 2nd gear. Then would pick back up and dropback down. Replace the tps and It was good for the weekend. Then it started up again. ...
August 18, 2008
1998 Isuzu Rodeo LS 3.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, CONSISTANT TPS CODE VIN: 4S2CM58W2W
P0121: Throttle Position Sensor Signal Range/Performance. Hi guys-here's a brain teaser: This vehicle came to us after several attempts at other shops to fix it. Vehicle had very low power, surge at idle, low vacuum (11" idle and 13" no load 2k rpms, and black spark plugs on rt bank. Diagnostics indicated the...
August 20, 2008
2000 Volkswagen Beetle GLS 2.0L No Start, Stall VIN: 3VWCA21C8Y
P0121: Throttle/Pedal Sensor A circuit. I have a 2000 VW Beetle with a 2.0 engine that will not stay running. It attempts to start then stalls out. I understand that the ecm may need be reset according to a TSB I found, however I am unable to find the procedure. I am limited in equipment, using an O...
August 13, 2008
2001 Hyundai Santa Fe GLS 2.7L Surge, Cuts out, MIL Lamp on VIN: KM8SC83D41
P0121: Throttle Position Sensor Circuit Range/Performance. ... replaced the tps. it had a tps p0121 code and cutsout. The engine feels like it returned to Idle about the time it shifted into 2nd gear. Then would pick back up and dropback down. Replace the tps and It was good for the weekend. Then it started up again. ...
August 18, 2008
1998 Isuzu Rodeo LS 3.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, CONSISTANT TPS CODE VIN: 4S2CM58W2W
P0121: Throttle Position Sensor Signal Range/Performance. Hi guys-here's a brain teaser: This vehicle came to us after several attempts at other shops to fix it. Vehicle had very low power, surge at idle, low vacuum (11" idle and 13" no load 2k rpms, and black spark plugs on rt bank. Diagnostics indicated the...
August 20, 2008