Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
cheryl --replied to the original with the suggestion to replace the MAF----So went back thru my old posts that had the whole electrical schematic and did some reading. I hesitated because I wasn't getting an engine light on dash. And my symptoms were not usual --mine were--- idled good -no bucking or hard starting. Just bogging when accelerating and hard shifts from the tranny and gas pedal depressed more than usual. I replaced the MAF sensor like cheryl said and it's back to normal-. THANKS CHERYL