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Hummer
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2008
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H2 4D Utility Wagon
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Engine Controls And Fuel - 6.2L - DTC P0010 To DTC P0232
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DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
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Conditions for Setting the DTC
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P0122
Conditions for Setting the DTC: P0122
The ECM detects that the TP sensor 1 voltage is less than 0.325 volt for more than 1 second.