check engine light is on and the code that it throughs is P0106. on 2004 GMC Envoy

need advice where to troubleshoot first and where the map sensor is on this vehicle. 2004 gmc envoy xuv

Asked by for the 2004 GMC Envoy
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