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P0221 Diagnostic Trouble Code Discussion for September 2010

Throttle Position Sensor 2 Circuit Performance

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Trouble Ticket Help Requests for DTC P0221
Help Request Posted
2003 Cadillac CTS 3.2L Poor Idle Quality, MIL Lamp on VIN: 1G6DM57N23
P0221: Throttle Position Sensor 1-2 Range Correlation. Hello fellow Tech's, I have P0221 Throttle position sensor condition. This is an intermittent condition only happened once before. Flow chart lead me to intermittent Diag. and I found nothing. TSB shows very little help. Thanks for ANY help.
September 14, 2010