2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

UIM only has 2 nipples firewall side

Thread Tools
 
Search this Thread
 
Old Dec 18, 2016 | 12:16 AM
  #1  
escrtn03's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2016
Posts: 44
Likes: 0
From: Nashville
UIM only has 2 nipples firewall side

88 Turbo II .. Where art thou 3rd nipple? Most of the diagrams I'm seeing have a nipple for primary and secondary air bleed, and OMP. I don't know where to plug in what..

(See picture below)



Last edited by escrtn03; Dec 18, 2016 at 08:48 PM.
Reply
Old Dec 18, 2016 | 05:55 PM
  #2  
satch's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 11,738
Likes: 16
From: tulsa,ok.
In the manual diagram you have pictured shows two different setups where one is for manual and the other is for automatic. The auto has three. Is that your question?
Reply
Old Dec 18, 2016 | 08:45 PM
  #3  
escrtn03's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2016
Posts: 44
Likes: 0
From: Nashville
Originally Posted by satch
In the manual diagram you have pictured shows two different setups where one is for manual and the other is for automatic. The auto has three. Is that your question?
Sorry, the picture was not of the manual, it was of the vacuum nipples on the firewall side of the throttle body / UIM... Let me crop it..


Reply
Old Dec 18, 2016 | 08:52 PM
  #4  
escrtn03's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2016
Posts: 44
Likes: 0
From: Nashville
From what I can tell the top is the primary injector air bleed, and the bottom is the OMP nipple.. but I was really just curious why mine only has 2 nipples on the back.. It has 3 on the front like normal.
Reply
Old Dec 20, 2016 | 10:21 PM
  #5  
escrtn03's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2016
Posts: 44
Likes: 0
From: Nashville
Where does my thermowax go if there's only 2 nipples? Why are there only 2? Anyone?
Reply
Old Dec 21, 2016 | 09:33 PM
  #6  
eage8's Avatar
1308ccs of awesome
Tenured Member: 20 Years
iTrader: (9)
 
Joined: Sep 2003
Posts: 6,189
Likes: 18
From: Woodbine, MD
S4s don't have secondary air bleeds do they?

The fsm has a vacuum diagram...

Third nipple goes to subzero start assist which California cars didn't have.
Reply
Old Dec 21, 2016 | 10:29 PM
  #7  
escrtn03's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2016
Posts: 44
Likes: 0
From: Nashville
Originally Posted by eage8
S4s don't have secondary air bleeds do they?

The fsm has a vacuum diagram...

Third nipple goes to subzero start assist which California cars didn't have.
Hey, thanks for the response. I checked the FSM and it shows 3 on the back of the UIM... and it doesn't show where the thermowax vac plugs in.. So not much help.

They don't have secondary air bleeds. That's correct. But the OMP nipple is back there.. the primary injector air bleed covers the second hole, so where does the thermowax plug into if there's only 1 vac and an air supply? Do I have to run one from the front?
Reply
Old Dec 21, 2016 | 11:03 PM
  #8  
eage8's Avatar
1308ccs of awesome
Tenured Member: 20 Years
iTrader: (9)
 
Joined: Sep 2003
Posts: 6,189
Likes: 18
From: Woodbine, MD
Your car is a mystery

Is that the original intake manifold and TB? does it have thermowax w/ 2 nipples?


Last edited by eage8; Dec 21, 2016 at 11:10 PM.
Reply
Old Dec 21, 2016 | 11:14 PM
  #9  
escrtn03's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2016
Posts: 44
Likes: 0
From: Nashville
So weird. Maybe this UIM was borrowed off another year model or something.. For now just gonna leave off the thermowax.. *Shrug*
Reply
Old Dec 22, 2016 | 11:56 AM
  #10  
RXSpeed16's Avatar
Theoretical Tinkerer
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (41)
 
Joined: Oct 2003
Posts: 1,600
Likes: 49
From: Norcal/Bay Area, CA
Does your UIM have an EGR valve flange? If not, then it's a JDM version.
Reply




All times are GMT -5. The time now is 07:38 PM.