a while back, I installed a fuel pressure sender and wired it up w/ the stock EGR wiring in order to be able to log fp w/ EFILive...
these are the connections I made for the fp sender:

sender/pigtail to egr harness

Grey (gnd) to purple (gnd)

Blk (+5vdc) to grey (+5vdc)

Blue (0-5 signal) to brown (0-5 signal)

instead of using the wiring to log fp, I now want to use the EGR wiring to install a 2bar MAP sensor in order to be able to log boost w/ EFILive...

the 2bar map sensor's pigtail has a grey wire, a green wire and an orange w/ black stripe wire...

does anyone know which of the pigtail's wires to use w/ the gnd, w/ the +5vdc and w/ the 0-5 signal wires of the EGR wiring as listed above?

 

Hmmm, why are you using the EGR wiring?? You can log that stuff just like your log your wideband, you just create a custom PID....

 

a custom pid will still have to be made to use the EGR wiring to log boost...just as it is now to log fp...
I am not running SD tune so I still need my stock MAP sensor in place...

 

For what your doing, I would just put the 2 bar on the truck, convent to COS3 and keep it MAF. You don't have to ditch the MAF and go SD just cuz you put a 2 bar MAP in it. Then you can just log the MAP to see how much boost you are running.

 

I would install the 2-bar sensor and create a custom PID. I think you can read the sensor data properly even though the PCM is not using it.

 

that is exactly what I am currently doing w/ the fp sender...

 

OK...
got the info from kp on LS1tech...

MAP sensor pigtail to EGR harness

PIN A Orange/Blk (gnd) to Purple (gnd)

PIN C Grey (+5vdc) to Grey (+5vdc)

PIN B Green (0-5 signal) to Brown (0-5 signal)

now I need a custom PID to convert the voltage to psi

 

Do you not believe KB? Why would you have to make it more difficult? Do you have a wideband? If not, save the EGR harness for one.

 

Of course I believe him...
more difficult?
all I originally asked was which wire was which on the MAP sensor pigtail...

1. I do have a WB and it is already being logged...a DynoJet WB Commander plugs directly into the EFILive hardware.
2. I already have a 2bar MAP sensor in-hand that is NOT the direct-fit replacement for the stock 1bar.
3. It is actually way easier to do what I'm doing...in MY situation...
EGR DTC's are already turned off in tune and wiring is already plug-n-play, both done previously to log fp...
wiring it in and running a piece of vacuum line takes 2 minutes and I now have a custom PID waiting to be added to my calc pids...
no changeover to a COS needed...no buying another MAP sensor...

 

OK, OK, OK. It just seemed like you totally dismissed him by not responding.