We are swapping in a 95 JDM SiR motor in my friends 94 Canadian Si. We wired it up and have one problem. The new motor does not have a thottle body mounted MAP sensor. The old motor (D16Z6)also has some sort of vacuum sensor on the right hand side of the intake mani also. I'm an OBD0 guy myself so what is this vacuum sensor on the back of the manifold and what do we do for a MAP sensor. Can we use an older generation firewall mounted, Use the old throttle body, and what do we do about my mystery sensor?

 

O.K. Some people even though I say other wise say you can take a aluminium plate... drill three holes one the size of the vacuum diameter.... use a o-ring and do it that way. I think this is ghetto and don't seggust doing it. That MAP sensor is a internal one ment to be inside the T-body and you need one of ANY 4 cycl. HONDA That has a firewall mounted MAP sensor. OBD O OBD 1 doesn't matter. I gave my friend my old DX ( I have a 91' Civic HB w/ a B16 ) MAP sensor cause he put a B16 into his EG but had a OBDO throttle body. Some people try just putting a vacuum line on the kind that go into the T-body but all the times I've seen this done it throws CEL's. Try to get one off a car with MPFI cause I noticed when I ran my DX MAP on my B16 it ran richer then when I finally got my hands on a teggy MAP that I use now. Hope this helps. Also there should be two nipples on the T body one dead center of the T-body at the top and one lower off to the right closer to the motor. MAKE sure to hook the MAP line to the lower one closer two the valve cover on the right. The middle center nipple is for the emissions for the canister. I made the mistake and hooked my MAP line up to the cneter one when I first put my motor in and the cars barely started and ran like crap so make sure to use the one on the right.