Originally Posted by Bumnah

map sensor is on the throttle body. if you look at the back of the throttle body they have carved out a route for air to go uptowards the map sensor for reading. there are no vacuum lines connected to a map sensor. vacuum lines are all on the intake manifold.

if you unplug your map sensor while the car is running your car should turn off.

Am i even in the ballpark of this thread, I feel as if I'm talking about something completely different.


What's the problem?

Originally Posted by e30dood

You're confusing a tps with a map sensor. Tps is located on the throttle body. It's operated by the throttle plate, the more it opens, the more voltage the tps sends to the ecu to compensate for load.

Map sensor needs a vaccum line to sense manifold pressure and vacuum. More manifold pressure and less vacuum = higher voltage sent to ecu and vice versa.