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P0121 Diagnostic Trouble Code Discussion for November 2016

Throttle Position Sensor Does Not Agree With MAP


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Trouble Ticket Help Requests for DTC P0121
Help Request Posted
2008 Chevrolet Silverado 2500 HD WT 6.0L No Start VIN: 1GCHC29K28
P0121: tps. Believe not related. ... Check fuel pressure good at 60psi cranking. Pulled multiple code. P0121,p0300 p0442,p0455,p0513 and p0573.None I believe to be related to the concern. Cleared all code. cleaned throttle and maf air sensor. Veh will start and run on starter fluid. Check fus...
November 28, 2016
2008 Chevrolet Silverado 2500 HD WT 6.0L No Start VIN: 1GCHC29K28
P0121: tps. Believe not related. ... Check fuel pressure good at 60psi cranking. Pulled multiple code. P0121,p0300 p0442,p0455,p0513 and p0573.None I believe to be related to the concern. Cleared all code. cleaned throttle and maf air sensor. Veh will start and run on starter fluid. Check fus...
November 29, 2016