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

under dash pressure sensor s4

Thread Tools
 
Search this Thread
 
Old 06-17-13, 03:06 PM
  #1  
Full Member

Thread Starter
iTrader: (19)
 
deftones1868's Avatar
 
Join Date: Jul 2012
Location: painesville oh
Posts: 225
Likes: 0
Received 0 Likes on 0 Posts
under dash pressure sensor s4

so I was pretty sure that both under the dash and engine bay pressure sensors were n318 for turbo models... but I have a n318 in the engine bay and a n326 under the dash.....? is that correct? any help is appreciated. all I could find was stuff on the engine bay sensor.
Old 06-17-13, 03:09 PM
  #2  
FD Daily

iTrader: (26)
 
K-Tune's Avatar
 
Join Date: Jul 2003
Location: Gulf Breeze, FL
Posts: 3,308
Likes: 0
Received 14 Likes on 14 Posts
Yes that's correct. The ATP is the same part for turbo and Na.
Old 06-17-13, 03:10 PM
  #3  
Full Member

Thread Starter
iTrader: (19)
 
deftones1868's Avatar
 
Join Date: Jul 2012
Location: painesville oh
Posts: 225
Likes: 0
Received 0 Likes on 0 Posts
or may be not... did the turbo models look alike but have different model #

I just found another one.

one is n318 8z11
e1t10771*

other is
n318 7100
e1t10771

sorry some moron took all his pressure sensors and tossed em In a box and didn't label anything.

Last edited by deftones1868; 06-17-13 at 03:12 PM.
Old 06-17-13, 03:27 PM
  #4  
Sharp Claws

iTrader: (30)
 
RotaryEvolution's Avatar
 
Join Date: Oct 2003
Location: Central Florida
Posts: 5,107
Likes: 0
Received 41 Likes on 40 Posts
the under dash sensor is NOT the same as the one under the hood, it is an ATMOSPHERIC pressure sensor. it has a vented cap instead of a vacuum line nipple.
Old 06-17-13, 03:46 PM
  #5  
Full Member

Thread Starter
iTrader: (19)
 
deftones1868's Avatar
 
Join Date: Jul 2012
Location: painesville oh
Posts: 225
Likes: 0
Received 0 Likes on 0 Posts
yea that's what I thought. but they are the same in both turbo and na? a n326?
Old 06-17-13, 04:01 PM
  #6  
Sharp Claws

iTrader: (30)
 
RotaryEvolution's Avatar
 
Join Date: Oct 2003
Location: Central Florida
Posts: 5,107
Likes: 0
Received 41 Likes on 40 Posts
fairly sure they are, it's rather rare i work on stock turbo IIs anymore that i can't even remember.
Old 06-17-13, 07:17 PM
  #7  
Retired Moderator, RIP

iTrader: (142)
 
misterstyx69's Avatar
 
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes on 114 Posts
I used the N326 atp in my Swap..N318 boost sensor in the engine bay.
ran good!
Old 06-17-13, 07:19 PM
  #8  
MECP Certified Installer

 
jjwalker's Avatar
 
Join Date: Feb 2009
Location: Mesquite, TX-DFW
Posts: 3,176
Likes: 0
Received 2 Likes on 2 Posts
Just curious, does NA cars have this pressure sensor under the dash? I thought it was built into the ECU.
Old 06-17-13, 07:21 PM
  #9  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,993
Received 2,691 Likes on 1,905 Posts
Originally Posted by jjwalker
Just curious, does NA cars have this pressure sensor under the dash? I thought it was built into the ECU.
on the S5's its built into the ECU
Old 06-17-13, 07:24 PM
  #10  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,993
Received 2,691 Likes on 1,905 Posts
Originally Posted by deftones1868
yea that's what I thought. but they are the same in both turbo and na? a n326?
yes, all it does is check the atmospheric pressure.
Old 12-13-13, 05:58 PM
  #11  
RX for fun

iTrader: (13)
 
Siraniko's Avatar
 
Join Date: Aug 2001
Location: Socal
Posts: 15,926
Likes: 0
Received 22 Likes on 19 Posts
Anyone have a picture of an atmostpheric pressure sensor? I have an uncut complete wiring 88tii wiring harness but some of electronic boxes got disconnected and this is the only that i cant ID. Im doing a T2 conversion and redoing the harness from scratch. TIA
Old 12-13-13, 06:07 PM
  #12  
Retired Moderator, RIP

iTrader: (142)
 
misterstyx69's Avatar
 
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes on 114 Posts
It sort of looks like the one at the bottom of the page.
86-92 Engine Electrical

Only it is located in the Passenger kick panel area and does not have a hose connected to it,just a connector.
Old 12-13-13, 07:20 PM
  #13  
RX for fun

iTrader: (13)
 
Siraniko's Avatar
 
Join Date: Aug 2001
Location: Socal
Posts: 15,926
Likes: 0
Received 22 Likes on 19 Posts
I saw that. Identical to a boost sensor (marked 318 also) but without the vacuum port. As I said, I'm making my own harness, saving the uncut 88 tii harness (complete from headlights to taillights) for my SA's Tii smog legal conversion.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
yetter227
2nd Generation Specific (1986-1992)
20
09-05-15 11:57 PM



Quick Reply: under dash pressure sensor s4



All times are GMT -5. The time now is 07:48 AM.