This is for a trailblazer ss with the LS2. this guy on a trailblazer ss board needs some help with a question. post up and i will forward it to him. Thanks.

"I have started to install my nx kit on my tbss and I have run into several things that have me puzzled. I am not sure which wire on the throttle body positioning sensor I need to tap into for my window switch. I have been told the purple one but I want to know for sure. Also needing to find the right line to tap into for the tach signal. I have pulled the tape on the passenger side by the coil packs and have been told its the green wire i need but again I don't know for sure. And maybe a easy 12v. accessory switch on the inside of the truck if anyone knows that also. Thanks in advance."

 

Anybody out there?

 

whos window switch.
If the Trick switch
tach is green/white stripe
on the TPS you have a purple and a green on is rising one is falling. tap into either wire and check it, with your window switch. You will know right away.
I like the falling signals better.
rising works but can be a little tempermetal.
hope this helps.
Rick

 

Thanks, i will forward this to him.

 

as NXRicky said before the TPS will go on the purple or the green on the TPS sensor

here is the tach signal wire....



post #37 in the wiring sticky outlines the installation of the window switch

 

He said LS2, that's a pic of my LS1 , not sure if they are the same on the wiring harness?...

I got to pretty the purge bracket up in that photo

 

the GTO's and C6 have had the same connector

 

Blue connector off the computer pin #10 Brown wire with red tracer on the LS2 SS Trailblazer for tach or white wire under the dash going to the tach.

 

I still can't find a tach signal. I have tried two wires and still nothing. If the window switch doesn't find a tach signal will it not let the system work at all?