What are they and the purpose of these 2 things on the firewall below?

 

well all i know is that the one on the left is not important at all. the right however, i no clue what that is for. never seen it.

 

+1 to that.

I would assume the guy on the right is some sort of hood sensor for an aftermarket alarm system?

 

Thing circled in RED has a nipple for a hose.

 

a vaccuum line goes on there haha

 

K, so where does the other end go to then?

 

The green circle if for a clamp to hold one of the pipes that crosses over the firewall.
Yours looks missing.

The red circle is for an AFTERMARKET pressure sensor (gauge?).
It's not stock.
Looks either HKS or Omori...


-Ted

 

the green one is deff for when your car had a/c, it was for the a/c piping - i just took mine out of my 88. its only there if your car came with a/c from the factory. my 86 doesnt have that.

 

Do you think it goes to the A nipple on my PRofec?

 

i dunno but i think youre missing an intercooler bolt

 

+1

 

Yea, there's only 3 in. Since the last 1 doesn't line up with the hole correctly.

 

Or how about this pressure sensor that's missing an input?

 

where do those wires coming out of the back of that thing run to? That would be the first thing I would look for. THEN I would find out where that profec line needs to go. Probably to the input on your greddy pressure sensor. Is that a profec B? I've got the same one I think, but mine is not here at the moment so I can't check for ya. Find out where those wires go to though......

 

damn you've got some oldschool **** in this whip

 

Which thing?! Are you talking about the red circled thing? The PRofec is a PRofec A, I'll try and hook it up to the Greddy pressure sensor tomorrow and see what happens.


Guess I'm kickin' old school then, haha.

 

yes.... the red "thing".... with the wires

 

your profec , as in greddy profec boost controller right? one of those should go to the controller/boost guage in teh car

 

Well I traced it to another connector and it goes into a hole in the middle of the firewall, didn't have time today to check behind the center console or dash yet.


Yes, it's a Greddy PRofec A. Well, I went to Greddy's website and looked through the installation manual. The hose that is coming from the IM is supposed to be hooked up to that empty nipple(A) on the PRofec control motor. My IM hose ends at the car's pressure sensor. So do I unhook that and plug it up to the PRofec or add another 3-way joint? Did NOT see the thing circled in red as part of the unit.

I also have a boost guage in the car and it's working, however the boost controller has a reading of 0.0.

The previous owner did give me an uninstall Rebic III. Checked the instruction manual and the 2 black boxes are part of the unit. Did NOT see the thing circled in red.

 

Anybody?

 

no, leave the pressure sensor plugged in. you need a 3 way.