Notices
GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

5v source

Thread Tools
 
Search this Thread
 
Old 11-04-2008, 09:40 PM
  #11  
TECH Fanatic
iTrader: (17)
 
Truckshop's Avatar
 
Join Date: Jul 2007
Location: Prairieville,La
Posts: 1,139
Likes: 0
Received 0 Likes on 0 Posts
Default

let me know what sensor you want to splice into and i can tell you what color wire and pin #. on the map and the tp i believe the gray wire is the 5v reference.
Old 11-04-2008, 09:44 PM
  #12  
PSM
TECH Fanatic
Thread Starter
iTrader: (3)
 
PSM's Avatar
 
Join Date: Jun 2003
Location: New Hampshire
Posts: 1,218
Likes: 0
Received 1 Like on 1 Post
Default

probably the map sensor ill try the gray
Old 11-04-2008, 09:47 PM
  #13  
TECH Fanatic
iTrader: (17)
 
Truckshop's Avatar
 
Join Date: Jul 2007
Location: Prairieville,La
Posts: 1,139
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by PSM
probably the map sensor ill try the gray
thats it. the black wire is the ground.
Old 11-08-2008, 07:24 PM
  #14  
PSM
TECH Fanatic
Thread Starter
iTrader: (3)
 
PSM's Avatar
 
Join Date: Jun 2003
Location: New Hampshire
Posts: 1,218
Likes: 0
Received 1 Like on 1 Post
Default

Would splicing in and putting those two sensors off the gm 5v mess up the signal. I dunno if the added load of two more sensors would make the pcm not be able to keep that voltage at 5
Old 11-08-2008, 07:41 PM
  #15  
TECH Fanatic
iTrader: (17)
 
Truckshop's Avatar
 
Join Date: Jul 2007
Location: Prairieville,La
Posts: 1,139
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by PSM
Would splicing in and putting those two sensors off the gm 5v mess up the signal. I dunno if the added load of two more sensors would make the pcm not be able to keep that voltage at 5
it should be fine. if you are worried here is a link to a 5v power supply.

http://www.aeroforcetech.com/sensor.html
Old 11-09-2008, 02:36 AM
  #16  
PSM
TECH Fanatic
Thread Starter
iTrader: (3)
 
PSM's Avatar
 
Join Date: Jun 2003
Location: New Hampshire
Posts: 1,218
Likes: 0
Received 1 Like on 1 Post
Default

Pn the map sensor i have grey, orange, and green.. any idea which one of those is ground. I'd test the truck, but its still not close to being back together yet
Old 11-09-2008, 07:27 AM
  #17  
TECH Apprentice
iTrader: (1)
 
sprayed8's Avatar
 
Join Date: Oct 2007
Location: Southern NH
Posts: 361
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm pretty sure the green is the wire that varies because that is the one i tapped into on my TPS for WOT nitrous activation, so i don't think that's the one you want.
Old 11-09-2008, 08:07 AM
  #18  
TECH Fanatic
iTrader: (17)
 
Truckshop's Avatar
 
Join Date: Jul 2007
Location: Prairieville,La
Posts: 1,139
Likes: 0
Received 0 Likes on 0 Posts
Default

the orange is the low reference (ground) that comes from the ecm. in the harness i would pick one of the black ground wires and use it.
Old 11-09-2008, 09:49 AM
  #19  
PSM
TECH Fanatic
Thread Starter
iTrader: (3)
 
PSM's Avatar
 
Join Date: Jun 2003
Location: New Hampshire
Posts: 1,218
Likes: 0
Received 1 Like on 1 Post
Default

wouldn't I want to use the same ground wire the sensors use since that is what the ecu is using as reference to give 5v off of?
Old 11-09-2008, 09:52 AM
  #20  
How do I change this text
iTrader: (26)
 
Wilde Racing's Avatar
 
Join Date: Jan 2005
Location: Behind the TIG welder
Posts: 7,294
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by budhayes3
I believe that 03's don't have EGR, I thought that they did away with it in 02...at least on the 1500's...
Yep, But I'm pretty sure you can still use the pin from the pcm ...


Quick Reply: 5v source



All times are GMT -5. The time now is 04:41 AM.