Hello all,

I cannot figure out where the vacuum line for the MAP sensor runs/connects to, any help would be greatly appreciated.

Thanks

 

It connects to the vacum nipple on the side of your plenum(passenger side). The fatter of the two nipples.LOL

 

Okay thanks that gives me a better idea but i'm assuming you meant for a TPI what about a carbureted third gen? Thanks

 

What is the difference between these two pictures, and is the one with the blue connector not supposed to have anything hooked up to it? The damn haynes shows both pictures and says a MAP can be on either side well it looks like I have both? I just need to hook up the blue connector sensor

 

The LG4 carb engine has two sensors, one for engine manifold vacuum with a gray connector p/n 2503679 and the one with the blue connector is the barometric pressure sensor p/n 1600683. No line connected to the BARO sensor, it originally had a piece of foam glued over the inlet port. There is NOTHING to hook to the Blue connector Sensor. My LG4 El Camino has the same set up.

 

That clears things up well, thank you for your time