Still having issues with rough idle, sometimes dies after start up, and surging. P0171, P0171, and misfire cylinder 4 codes. Replaced throttle position sensor. I thought the plug on the left side of the throttle body was the map sensor but when I got home with the box it looked different. All the pics of the map sensor on the net look like what the gave me. Whats the plug on the left side of the throttle body and where is the map sensor located?

If replacing these doesn't fix it I guess the fuel pressure regulator is next. I cleaned the maf but I guess I could replace that too. Just wanna get it fixed so I can get rid of it. I'm gonna loose my butt on this thing. Just wish I could keep the seats. lol

Thanks,

Mrcln1