On my 4.7, book says there should be 2 bolts holding on the MAP sensor, but I only have 1....what do you have?

I am thinking of replacing mine, as I have been having cold start idle issues (revs up to 1200RPM and down, then stabilizes eventually). Only happens if truck sat overnight of for a long time. I also have some issues where when I stomp on it, it seems as if I do not get full power...no codes or anything.

If I disconnect the battery and reset the computer, it stays away for a while. I already cleaned out the TB, IAC, and TPS.

Thinking either MAP or EGR (also already replaced PCV).

Weird.

TIA...

 

My MAP sensor has one. I have idle issues with my fastman, so I started replacing sensors and that was one of them. While taking it off, I thought one of the bolts actually snapped off so I rejoiced thinking I finally found a vacuum leak (which I believe is why Im having problems) .... turns out one side has a stud, the other has the bolt.

 

Only one bolt, the other is a peg.

 

Well, I took it off to look at it and see if it was gummed up (new one comes in on Monday). It was gummed up pretty good...I cleaned it out with a swab, no good.
CEL light is on, truck runs bad!
I think I will be adding a catch can after I replace the MAP. I also see Seafoam in my future

I am getting the MAP sensor from NAPA ($22.00). Autozone wanted $105.00, Pep Boys $94.00...what am I missing here?

 

I paid around 20 from Rockauto.com. I need to get my catch can mounted. I have everything test fitted, I've just been lazy. Lol

 

I replaced the MAP sensor today, WOW! What a difference! Idle is SMOOTH!
I do not feel my "shake" on the highway either! (will wait to see if it comes back).

I am going to get a cheap catch can for sure now, I see first hand why I need it