im in the final stage of completion but running to wires i cant find in books or internet. i hope some of the pro can help me on this. thx in advance:

on the boost gauge and oil booster gauges. there is 4 wires. red black white orange. on the #2 option of the greddy e-manage do i connect it to? what color wires?

 

You need to provide what kind of boost guage you are using.

I'm also not aware of a boost gauge that can be used the Greddy pressure sensor for an input.

 

its not input to the greddy e manage. it option #2 output to the greddy gauges. to provide the power to the greddy gauges

 

two wiring harness on the e manage. option 1 is for ecu. option 2 is optional wiring. i guess thats for powering the gauges. how do you wire it. red white black and orange

 

You didn't get a wiring diagram with the gauges?

 

Looky what I found on www.greddy.com

http://www.greddy.com/img/PHP/products/pdf/702.pdf

 

lol thx a lot. i rip that site apart and didnt find it... guess i am blind all i need was the color and whats it for i got exactlly. life saver!!! thx