MAP Sensor has no vac line?

[TheUser]

Well, basically my MAP sensor doesn't have a vacuum line attached to it. Should it be like this...I thought that was kinda the point...to measure manifold pressure. The manual says there should be a vac line connected to it...where does the vac line connect to the manifold at? The weird thing that my stock 90 LX 5.0 doesn't have a vac line connected to the MAP sensor either and I've not messed with it at all...

 

[Kid wita 5oh]

on speed density cars its is a MAP sensor on Mass air cars (89+) it is a BAP senor Barometric absolute pressure..in other words normal atmosphere...

thats why there is no vac line to it....it doesnt messure the manifold

 

[TheUser]

that would explain it. Thanks for pointing that out. I thought it was the other way around, but after some research, concluded that the MAP was, in fact, on speed density cars and the BAP is on both of mine and do not need the vacuum line. Cool...