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

s4 t2 boost pressure sensor pinout help

Thread Tools
 
Search this Thread
 
Old Mar 18, 2014 | 12:20 AM
  #1  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
s4 t2 boost pressure sensor pinout help

Im putting a 3 bar map in my fc and lost my banzai racing adapter for it . I need to find out which wires is power/sensor/ground in the engine harness were the stock pressure connected is thanks
Reply
Old Mar 18, 2014 | 07:59 PM
  #2  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
Originally Posted by bmwrx7man
Im putting a 3 bar map in my fc and lost my banzai racing adapter for it . I need to find out which wires is power/sensor/ground in the engine harness were the stock pressure connected is thanks
No one?
Reply
Old Mar 18, 2014 | 08:18 PM
  #3  
satch's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 11,738
Likes: 16
From: tulsa,ok.
Sensor connects to the Emission harness. Brown/Red wire is for the gauge, Brown/White is the Vref (5volts w/key to on), Black/White is 12 volts w/key to on/start, and Black is ground.
Reply
Old Mar 18, 2014 | 11:06 PM
  #4  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
Originally Posted by satch
sensor connects to the emission harness. Brown/red wire is for the gauge, brown/white is the vref (5volts w/key to on), black/white is 12 volts w/key to on/start, and black is ground.
your the man
Reply
Old Apr 1, 2014 | 07:02 PM
  #5  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
Originally Posted by bmwrx7man

your the man
Bump can anyone double check this my mapbsensor isn't reading
Reply
Old Apr 1, 2014 | 08:44 PM
  #6  
satch's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 11,738
Likes: 16
From: tulsa,ok.
The wire for the gauge runs to the gauge as well as pin 2B of the ECU but it would read 2.3-2.7 volts w/key to on. This is the output wire to feed info to the ECU and gauge.
Reply
Old Apr 1, 2014 | 11:58 PM
  #7  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
Originally Posted by satch
The wire for the gauge runs to the gauge as well as pin 2B of the ECU but it would read 2.3-2.7 volts w/key to on. This is the output wire to feed info to the ECU and gauge.
Hmm so those pin outs are for t2 s4?
Reply
Old Apr 2, 2014 | 12:28 AM
  #8  
satch's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 11,738
Likes: 16
From: tulsa,ok.
Pin 2B for the S4 turbo ECU is for the Boost Sensor. The wire is an output signal from the sensor thus it would read as such voltage wise w/o being connected o the ECU.
Reply
Old Apr 2, 2014 | 12:44 AM
  #9  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
Originally Posted by satch
Pin 2B for the S4 turbo ECU is for the Boost Sensor. The wire is an output signal from the sensor thus it would read as such voltage wise w/o being connected o the ECU.
So I'm suppose to connect the brown and red to the map sensor not the 12v wire? As of right now I have the 5v on c 12v on b and ground on a on the 3 bar
Reply
Old Apr 2, 2014 | 08:56 AM
  #10  
satch's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 11,738
Likes: 16
From: tulsa,ok.
An S4 turbo Boost Sensor has four wires. One is ground, one is 12 volt switched power, one is the 5 volt Vref and the final wire is the output wire which runs to the ECU and gauge.
Reply
Old Apr 2, 2014 | 09:17 AM
  #11  
bmwrx7man's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2004
Posts: 892
Likes: 0
From: cranston rhode island
Originally Posted by satch
An S4 turbo Boost Sensor has four wires. One is ground, one is 12 volt switched power, one is the 5 volt Vref and the final wire is the output wire which runs to the ECU and gauge.
I knew I messed up thanks man
Reply
Old Apr 2, 2014 | 12:32 PM
  #12  
satch's Avatar
Moderator
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 11,738
Likes: 16
From: tulsa,ok.
Originally Posted by bmwrx7man
I knew I messed up thanks man
So, you've righted the situation?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
Snoopy FD
Build Threads
25
Dec 8, 2015 01:45 PM
FullFunctionEng
Full Function Engineering
1
Aug 25, 2015 08:17 PM
stickmantijuana
20B Forum
8
Aug 18, 2015 02:46 PM




All times are GMT -5. The time now is 08:53 AM.