p0121 code

[gtpinsc]

yea ZEF answered my question in another thread about that problem about the boost light...i wasnt sure if that might be all tied into this TPS code...i dunno if i got a bad sensor from auto zone or if something is causing it to go bad.any other ideas?
or is TPS/pedal position sensor 2 seperate sensors?

[QwikGT]

i have gotten bad sensors before, i think if you check the TPS for voltage somewhere it will tell you if its bad. i dont know for sure. we dont have electronic throttle so i dont see the gas pedal having a sensor other than the TPS