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P2135 Diagnostic Trouble Code Discussion for November 2012

Throttle Position Sensor 1-2 Correlation

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Trouble Ticket Help Requests for DTC P2135
Help Request Posted
2003 GMC Yukon Denali 6.0L MIL Lamp on VIN: 1GKEK63U53
P2135: Throttle Position Sensor 1-2 Correlation Error. ... that has been eating our lunch for a couple days. 2003 GMC Yukon 6.0 came in with check engine light. Customer stated it lost power and wasn't able to accelerate. When we started it of course it worked OK. Codes stored were PO120 TP Position Sensor 1 Circu...
November 19, 2012
2007 GMC Yukon Denali 6.2L Poor Idle Quality VIN: 1GKFK63817
P2135: Throttle Position Sensor 1-2 Correlation Error. Cleaned throttle body and idle now sits at 1800-2000 when put in drive settles down. tap gas goes back up. my snap on verdict has an idle learn reset but as commonly seen it's not working. anybody know how to reste idle manually. I heard you have to hold gas p...
November 27, 2012