1 - ??? dont know what its for ??

2 - Brown - RPM i think i know where that is on the ecu

3 - Black - Ground obvious

4 - grey - parking brake light - where is the best place to get that wire? its a civic 94 d16z6

am presuming the plugs clip inbetween something... near the ignition? ive not really had a look yet

 

hks usa should have the wiring diagrams for you on their website

 

thakns but checked there and they dont... easier if someone knew and could tell me?

 

http://www.turbod16.com/viewtopic.php?t=13404

Check that website out...

 

right.. thanks thats helped a little but i still dont know what the white is for? and... where to get a signal from the parking brake?

 

Looks like 1&2 are quick connects.

Under you center console is the one wire of the e-brake, use a scotch-lock or something similar and tap in there.