Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

A/f Hook-up ? Forgot the answer ;(

Thread Tools
 
Search this Thread
 
Old 01-12-2008, 05:18 PM
  #1  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default A/f Hook-up ? Forgot the answer ;(

Need to hook up my A/F meter which signal wire goes to the A/F gauge off of the Ox sensor ?

Ox sensor:
white/white one connector
Black: single connector larger wire hooks to car green wire
Should I fuse the power?

From Car:
Brown/ Blue one connector
Large: Green wire with barrel connector

A/F gauge
Black to ground
Red to power
Purple to ???
Old 01-12-2008, 06:15 PM
  #2  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

Another ? is it OK to take the power feed and ground from the lighter?
Old 01-12-2008, 11:13 PM
  #3  
FlyingDog
Nordschleife Master
 
FlyingDog's Avatar
 
Join Date: Sep 2004
Location: Not close enough to VIR.
Posts: 9,429
Likes: 0
Received 2 Likes on 2 Posts
Default

I forget where the factory 12V feed comes from, but if I was adding one I'd use the fuel pump relay.
Old 01-13-2008, 12:03 AM
  #4  
Lizard928
Nordschleife Master
 
Lizard928's Avatar
 
Join Date: Apr 2003
Location: Abbotsford B.C.
Posts: 9,600
Received 34 Likes on 25 Posts
Default

taking from the lighter is fine if you are not using the factory cigarette lighter.
I would not draw from the fuel pump as suggested. IMO it already has too much load.
Old 01-13-2008, 08:12 AM
  #5  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

Does anyone know what wire I tap into for the A/F sensor signal? There are three to choose from, see post!
Old 01-13-2008, 11:07 AM
  #6  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

I found it was the black wire:

Has anyone inserted the vacuum tube for the boost gauge, where is the best spot to do this I'm using an ashtray pod.
Old 01-13-2008, 11:10 AM
  #7  
RngTrtl
Drifting
 
RngTrtl's Avatar
 
Join Date: Dec 2005
Location: ATL, GA w/a 996TT
Posts: 2,120
Received 100 Likes on 64 Posts
Default

You can pick up the vacuum tube at the LH computer. It has a vac line for the MAP sensor. Put a tee in there you are good to go.
Old 01-13-2008, 12:12 PM
  #8  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

Thanks

It was suggested that I take it off of the new Fuel Pressure regulator, think it would make a difference?
Old 01-13-2008, 12:28 PM
  #9  
RngTrtl
Drifting
 
RngTrtl's Avatar
 
Join Date: Dec 2005
Location: ATL, GA w/a 996TT
Posts: 2,120
Received 100 Likes on 64 Posts
Default

seriously doubt it. manifold vacuum and pressure should be the same at either place. I see no need to go into the engine bay to pick up the line, but I could be mistaken.
Old 01-13-2008, 12:37 PM
  #10  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

I have to agree it's a pain finding or worse drilling and hope you don't hit something.
Old 01-13-2008, 12:42 PM
  #11  
RngTrtl
Drifting
 
RngTrtl's Avatar
 
Join Date: Dec 2005
Location: ATL, GA w/a 996TT
Posts: 2,120
Received 100 Likes on 64 Posts
Default

FWIW, I have my guage picking up vacuum where I mentioned earlier near the computer.



Quick Reply: A/f Hook-up ? Forgot the answer ;(



All times are GMT -3. The time now is 01:54 AM.