my boost always reads 0? I have read it is the boost control selenoid? If this is correct what is the part # . I also need the part # for the throttle pos. sensor and the best place to buy them thnks

2000 ssei

It seems more likely to me that the vacuum line for the MAP sensor has come loose or cracked. Find it, follow it. Let us know.

it has come loose but I cant find where it goes. It is still connected to the map sensor? thnks

do you have boost? or is just the guage reading inaccurately? If you really have 0psi of boost, the car would be very sluggish, and downright slow.

i have boost just the guage is not working thnks

I think one end goes on the MAP sensor, and one end goes to the LIM below the nosedrive of the supercharger on a Series II.

thats where it goes there was already a hose there but after poontiac gave me a diagram it showed that a T was supposed to be there and I was missing the T so it didnt appear that there was a nipple for it. thnks again for the help