CHEVY CHEVY CODE P0121 NEED HELP

2007 Chevrolet Tahoe

Tiny

apache26d

September, 3, 2010 AT 9:07 PM

Computer problem
2007 Chevy Tahoe V8 Two Wheel Drive Automatic 67000 miles

I have a 2007 Chevy Tahoe that reads code P0121. It says " P0121 Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem" I don't have a clue what to do. Please advide

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