What is this? I tried tracing it down in my Chiltons manual, but to no avail. It has three wires heading out from it to in behind the far left side of the passenger firewall. The wires are colored white, maybe grey, white, again possibly grey, with a red stripe, and a red (I believe) wire.

Thanks, Bryan

 

looks like a map sensor

 

I am thinking the same thing.

Is there a nipple on the bottom of it for a vacuum line?

 

yeah it should have a little rubber hose coming off of it leading to the intake somewhere....

 

Yes there is a nipple, however it isn't hooked up. LoL. I didn't even notice it before.

 

If you no longer have the stock Quadrajet on there, you wont' need that sensor.

 

Alright. What if I am still running the cc quad? Would it cause like a rough idle or rich condition?

 

If it is an 84 Z28 like he has posted in his sig., I doubt that its a MAP sensor. From the location and looks of it, that bracket looks like the one that the ignition coil would mount too if it had one and under that would be the EGR solenoid which would have two openings for vacuum lines and a nipple. Just a thought.

The Trickster!!!!!!!!!!!!!

 

Weren't those the barometric sensors on the lg4's ?

Not sure of it's absolute function but, I know just looking at an lg4 the wrong way makes them run rough and rich.

Timing chain slack (80k+ miles) makes a huge differnce in idle quality (at least it did on my old camaro...).

 

what color wires are leading to it? I am almost positive it is a map sensor.... what year is your car and what engine does it have?

 

http://www.fbodymotorsports.com/inc/...l?v=1&pid=7552 It def looks like that to me

 

The car is an '84 with the l69 (305HO). The wires leading it are a white possibly grey, another white maybe grey with a red stripe and a black wire. It also has a vacuum nipple on the bottom.

 

Deadbirds is right, I have one on my L69. It is the barometric sensor. Ill check but i dont think that is a vac nipple I belive it is a port to check the barometric pressure of air