Help locating ignition coil wire for faze tach.

[toyocamboi]

Do anybody have any idea how to hook up a Faze Tachometer I gotten the 12volt wire and negative wire hook up already i also have my green wire hook up too but i am not sure if the green wire is hook up right it says on the manual to run the green wire hook up to the ignition coil but witch one, negative or the positive on the ignition coil?? i think i located the ignition coil wire but not sure it has two wire on it.. when i life the hood and in front of me there is three black boxes i am looking at the black box toward the driver side.. can any one help me???

I have a camry 98 3.0 V6 1mz automatic. Thanks..

[DoomCrewInc]

use a DMM and rev the car while its running(be sure to have the VMM set to AC) and check the to wires. or you could go buy a haynes or chiltons guide with the wiring diagrams in them. i could not understand your english too well! gave me a headache. most tachs are gonna have 4 wires, ground(black), positive(red), tach signal(green), and illumination(white?).

[terrastrife]

shouldnt really be wiring to the ignition coil on an efi car.... shouldnt you find an ecu pinout ofr the rpm signal wire?

[toyocamboi]

ay thanks for the comment i gotten it hook up..