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P0121 Diagnostic Trouble Code Discussion for September 2011

Throttle Position Sensor Does Not Agree With MAP

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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
1999 Volkswagen Beetle GL 2.0L Poor Idle Quality, MIL Lamp on VIN: 3VWCA21C9X
P0121: Tps idle circuit low. Came in as a no start, replaced faulty crankshaft sensor, Scanned codes and all 4 show up almost right away, Tried to relearn idle with Vag-com, Will not allow relearn, group 005 shows part throttle at idle, Checked wiring from throttle module to ecu,all good,...
September 12, 2011
2005 Volkswagen Jetta 2.5 2.5L Hesitation VIN: 3VWDF71K95
P0121: Throttle switch. ... response-listed codes present-however throttle codes do not match a 2.5 engine in MOD or ALLDATA-just a 2.0?-cleared codes and p1559 returns as soon as you open the throttle-from everything I am reading it would appear the t...
September 30, 2011