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P0121 Diagnostic Trouble Code Discussion for August 2009

Throttle Position Sensor Does Not Agree With MAP

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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
1999 Dodge Ram 3500 5.9L no throttle response VIN: 1B7MF3362X
P0121: accel pos sensor volts. When driving vehicle,apps switch has no response. Testing throttle @ park, volts raise up and respond. Tested other wiring of apps through mitchell all was in line with specs. Would like to confirm apps switch bad, because price of switch is expensive. Also an...
August 09, 2009
2007 Chevrolet Silverado 1500 LT 5.3L Surge VIN: 2GCEK13397
P0121: TP Sensor 1 Performance. truck came to our shop with check engine light on with code po121. engine running good. we did clean the throttle body and the light is off but when you touch the pedel the rpm stay about 2000 rpm. turn the key off and restart the rpm is good until you touch t...
August 13, 2009
2003 Jeep Grand Cherokee Overland 4.7L Hesitation, Cuts out VIN: 1J8GW68JX3
P0121: Throttle Position Sensor Performance. Hi all- Customer brought in this truck complaining that it had a random jerking feeling during cruise on the highway, and that at the same time the tach would jump from 2k to 3k rpms. Normally, at 70mph the speedo indicates 2k rpms. Our guess is that something...
August 19, 2009
2002 Buick Rendezvous CXL 3.4L MIL Lamp on VIN: 3G5DB03E72
P0121: TP Sensor Signal Performance. ... car was brought to me because the other tech could not figure it out. this is what i noticed. first there was no mil coming on like i was told. there were the codes p0121,p0122, p1122 then the battery freaked and when i reb...
August 31, 2009