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GMC
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2007
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Envoy 4.2 S, RWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System & Fuel System - 4.2L - DTC P0135 To DTC P0420
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DTC P0140
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Conditions For Setting The DTC
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Conditions For Setting The DTC
The PCM detects that the HO2S 2 parameter is between 425-473 mV.
DTC P0140 sets within 125 seconds when the above condition is met.