Ok, starting tonight, after a roll race, my engine has been really stumbling. it will idle ok, but i have no idea if a rough idle is happening, because my cam is pretty rough. its the tsp 233/239. what happens is the car idles like it usually does, then when you give it the gas it falls flat on its face and want to die. it simply wont wrap above 3k. this has never happened before. i just changed the fuel filter 2 days ago. plugs and wires have been on a year, with high heat shields on them. i scanned the computer, and i get the code P0107. i dont even know where the MAP sensor is. it says it has low voltage. i have had this code for a couple of months now off and on, but never this problem. is this a spark issue??

 

**UPDATE**

I found out what the problem was. There was a fricken piece of cotton stuck on the screen of the MAF. dont ask me how it got there. anyway, it is still throwing the code P0107.