need advice where to troubleshoot first and where the map sensor is on this vehicle. 2004 gmc envoy xuv
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2004 GMC Envoy Question: check engine light is on and the code that it throughs is P0106.
on top of intake manfold behind throttle body.its a press in fit sensor,ck it for obstruction after removing from intake. also ck for poss vac leaks around sensor area. then ck 5v ref signal and sensor grd. this is a good start. good luck
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