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P0121 Diagnostic Trouble Code Discussion for August 2012

Throttle Position Sensor Does Not Agree With MAP

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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
2007 Chevrolet Tahoe LTZ 5.3L Misfire, MIL Lamp on VIN: 1GNFC13J07
P0121: Tp sensor 1 performance. ... shows a p0121 code but i find cylinder number two and seven misfiring. I swap coils and put plugs in still the same. Check injector balance checked good checked compresion checked good. Sprayed carb cleaner around intake and got a change. Talked to custome...
August 08, 2012
2003 Pontiac Bonneville SE 3.8L Cuts out, MIL Lamp on VIN: 1G2HX52K93
P0121: TP Sensor Performance. The car will stall as you slow down to make a stop or a turn have checked for 5v to each sensor have good voltage also tested for voltage at map sensor with scanner when i unplugged map sensor scanner still show voltage disconnected the signal wire for map to ...
August 29, 2012