I broke the map sensor on the back of my manifold...the motor is out but I think the little piece fell back inside( if its possible). How do you remove the round part in the back of the intake manifold for me to try and remove it? It doesn't seem to unscrew or anything.

 

Just pull the intake since the motor is already out of the car

 

Ok I could take it off if need be but how do I remove the round part in the back where the map sensor goes? That is the part with the broken piece in it.

 

Here is what you do:

Take off the intake
put on a FAST 102/92 combo
Trash your old intake

Problem SOLVED

 

if it a ls1 intake upgrade to a ls6.or buy a ls1 intake cheap and use soapy water or wd-40 to pull the fitting out.

 

i made a tool to get that plug out, had a similar situation. you cannot buy that seperately, i had a corvette intake with a broken port, and i swapped it out with my 98 camaro ls1 intake,
found a transmission part, it was like a ring, then had to slice a small notch in it. then dropped it down in the intake, and used something to push it down. there are tangs on the inside that have to be squeezed in to get that plug out. if you need pics, i think i still have it laying around. it needs to be just the right diameter.
but like i said, you cant buy a new one, so its only useful if you have a new plug to put in, or need the plug out to do some repair

 

oh, if its the map sensor thats broken off inside that plug and the plug is still good,(no broken nipples) then youll have to do what i explained, or carefully drill/tap the little peice thats in there so you can pull it out