Cadillac CTS-V 2004-2007 (Gen I) The Caddy with an Attitude...

map sensor

Thread Tools
 
Search this Thread
 
Old 07-06-2011, 11:12 AM
  #1  
On The Tree
Thread Starter
iTrader: (7)
 
cts-vls6's Avatar
 
Join Date: Dec 2006
Posts: 187
Likes: 0
Received 0 Likes on 0 Posts

Default map sensor

do any one know the 2 bar gm map sensor parts # that will work on the v
Old 07-06-2011, 11:33 AM
  #2  
TECH Fanatic
iTrader: (8)
 
vmapper's Avatar
 
Join Date: Apr 2006
Posts: 1,053
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by cts-vls6
do any one know the 2 bar gm map sensor parts # that will work on the v
that would be 12615136 -GM pn BARO sensor from Colbalt SS.
Old 07-06-2011, 03:34 PM
  #3  
TECH Apprentice
iTrader: (4)
 
CancerJCC's Avatar
 
Join Date: Jan 2010
Location: GA
Posts: 331
Likes: 0
Received 0 Likes on 0 Posts
Default

http://www.tunedbyfrost.com/products_sens01.htm

Old 07-06-2011, 06:27 PM
  #4  
TECH Resident
 
serik21's Avatar
 
Join Date: Aug 2010
Posts: 756
Likes: 0
Received 0 Likes on 0 Posts

Default

What's the benefit of the 2bar?
Old 07-06-2011, 06:43 PM
  #5  
TECH Apprentice
iTrader: (1)
 
siggyfreud's Avatar
 
Join Date: Jul 2010
Location: Portland, OR
Posts: 344
Received 4 Likes on 3 Posts

Default

Nothing on an otherwise unchanged setup. However if you're running forced induction beyond a certain PSI, you need a 2 bar map sensor to read boost levels above that threshold.
Old 07-06-2011, 07:33 PM
  #6  
TECH Addict
iTrader: (14)
 
raven154's Avatar
 
Join Date: Feb 2007
Location: Owasso, OK
Posts: 2,342
Likes: 0
Received 0 Likes on 0 Posts

Default

You will also need to load a new 2 bar OS because the factory isn't set up to read 2 bar.
Old 07-06-2011, 08:23 PM
  #7  
TECH Apprentice
iTrader: (4)
 
CancerJCC's Avatar
 
Join Date: Jan 2010
Location: GA
Posts: 331
Likes: 0
Received 0 Likes on 0 Posts
Default

Yep and also log idle kpa with your stock 1 bar MAP to see what kpa you are at before swapping. This way you can adjust the offsets on your new 2 bar to exactly match what your stock MAP read.
Old 07-06-2011, 10:37 PM
  #8  
TECH Regular
iTrader: (14)
 
GulfM3's Avatar
 
Join Date: Jan 2009
Location: Cypress TX
Posts: 422
Likes: 0
Received 0 Likes on 0 Posts
Default

That's the one I'm using
Old 07-06-2011, 11:15 PM
  #9  
On The Tree
Thread Starter
iTrader: (7)
 
cts-vls6's Avatar
 
Join Date: Dec 2006
Posts: 187
Likes: 0
Received 0 Likes on 0 Posts

Default

thanks guys
Old 07-07-2011, 12:11 AM
  #10  
TECH Fanatic
iTrader: (8)
 
vmapper's Avatar
 
Join Date: Apr 2006
Posts: 1,053
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by siggyfreud
Nothing on an otherwise unchanged setup. However if you're running forced induction beyond a certain PSI, you need a 2 bar map sensor to read boost levels above that threshold.
You mean, ANY BOOST! (not what you said saying beyond a certain PSI that you need a 2bar sensor.. ANY Boost, you need a 2 bar sensor pending your boost levels, end of story.
The stock 1 bar sensor reads 15.23psi (5volt limit) ... remember sea level 101.3kpa is 14.69psi... so yea, i guess 0.5 psi... is the stock limit... I know Zero FI cars aiming for .5 pounds of boost, so you need a 2 bar sensor. 2.5 or 3.

As raven154 mentioned as well, you need to load a new OS to read the 210kpa limit.
You loose resolution with the Cts-v ECM... going to the 2bar OS. (you have to remember you are now using 10kpa cell jumps, rather than 5.
Old 07-07-2011, 12:11 AM
  #11  
TECH Fanatic
iTrader: (8)
 
vmapper's Avatar
 
Join Date: Apr 2006
Posts: 1,053
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by serik21
What's the benefit of the 2bar?
Forced Induction.
Old 07-07-2011, 12:16 AM
  #12  
TECH Apprentice
iTrader: (1)
 
siggyfreud's Avatar
 
Join Date: Jul 2010
Location: Portland, OR
Posts: 344
Received 4 Likes on 3 Posts

Default

Originally Posted by vmapper
You mean, ANY BOOST! (not what you said saying beyond a certain PSI that you need a 2bar sensor.. ANY Boost, you need a 2 bar sensor pending your boost levels, end of story.
The stock 1 bar sensor reads 15.23psi (5volt limit) ... remember sea level 101.3kpa is 14.69psi... so yea, i guess 0.5 psi... is the stock limit... I know Zero FI cars aiming for .5 pounds of boost, so you need a 2 bar sensor. 2.5 then 3 if your serious.

You loose resolution with the Cts-v ECM... going to the 2bar OS. (you have to remember you are now using 10kpa cell jumps, rather than 5.
Didn't realize the stock map sensor was 1 bar. In that case you're right. But some cars do come with 1+ stock, in which case you can get away with some boost. Many stock Honda sensors are 1.75-1.8bar.

So my statement is correct in general terms .

Anyways . . . good info for all .
Old 07-08-2011, 10:19 AM
  #13  
Teching In
 
2004ctsv's Avatar
 
Join Date: Apr 2004
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default

I have a couple PCM with various tunes for my FI V. One uses a 2 bar MAP from a Cobalt sensor with one side bracket ground off. I can swap PCM easily and just have to be sure the right MAP sensor is in. And retrain the CKP.

Last edited by 2004ctsv; 07-08-2011 at 10:20 AM. Reason: typo



Quick Reply: map sensor



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