20v dizzy/ cas wires

[grantobius]

g'day, l am currently wiring up a haltech ecu to my 20v blacktop. l am having troubles with the dizzy wiring. l was wondering if any1 new wat each of there wires do on the dizzy. l figured one will be ign and earth. just need the other 2 and wat pins they are?

any help much appreciated

[Skylar]

ughhh. Magnet-thingos don't require power.

There's one signal wire for the 24 teeth wheel(black), one each for G1(red) and G2(green) which are 180 degrees apart. The other wire is ground(white). Info is straight from c4ag.

You probably only need one of the reset signals and just tell it how far it is away from TDC but I dunno anything about haltechs.

[sundee]

i ll check for u tomorrow.. i wired up mine a few weeks ago.. it only uses 3 of the 4 wires from memory

[Grant #2]

please post what you find here! I might be going haltech too and this is interesting.

[sundee]

depending on which haltech you choose. I used the E8

here is the wiring diagram so u can see whats going on. taken straight for the haltech web site.




You can also download the ECU specific opporation/install manual. its a great read and u will learn alot about the ECU from this.

Here is some info in the toyota ignition system thanks to Toymods



k.

the 4a dizzys are Reluctor type.. they dont require a 12v power supply.
U can read why in the toymods link above.

The haltech needs: 2 inputs and 1 Earth

Assignment / Colour

Ground - (earth) / (L) Blue
Home - ( indicates TDC # 1) / (G) Green
Trigger - (24 thooth cam position) / (Y) Yellow

Your dizzy has: 3 outputs and 1 earth

Assignment / Colour

Trigger (NE) / Black
Home (G1) / Red
Home (G2) / Green
G1/G2 common Earth (G-) / White

The haltech only needs 1 home trigger - for TDC #1 Cylinder- The ECU then figures out the rest. as you can see the 20v dizzy has 2.. i assume the other being 180' out.

SO.... to wire up

20v Dizzy / Haltech

Trigger (NE) - Black / Goes to (Y) on haltech
Home (G1) - not used
Home (G2) - Green / Goes to (G) Green on Haltech
Earth (G-) - White / Goes to (L) BLue on the haltech

hope this helps... i had to write it twice!!

[Skylar]

Connect the NE signal to pin 6 yellow wire of the E6x. Pin 13 connects to one of the G1 or G2 signals. Doesn't matter which as long as you tell it where the tooth is in relation to #1TDC, although one is much closer to TDC than the other. If you're not running an E6x, you'll have to figure out the rest yourself to whatever ecu it is that you are running.

Also, with any ecu which runs separate grounds to take the CAS apart(yeah, the part that says do not remove or whatever) and rewire it so each sensor has a separate ground as the crosstalk between the signals due to the common ground is pretty bad.

Grant #2, I'd run a megasquirt if I were you. You're in America, you can get EDIS-4 modules easily and there's plenty of help available for edis set up 4age's. As opposed to the MS2Extra which I want to do.

[sundee]

^ u cant seperate the earths , the haltech only has the option for 1 earth. u dont have to touch the guts of the dizzy

[Skylar]

E6x diagram has two earths?

[grantobius]

thanx for the help guys, l will give it a crack this weekend

[grantobius]

l am using a e6k, and l have
blk-ground
yellow-trigger
blu-input A
red-input B
grn-home
gry/red-13V

they all use same earth. so should l just connect my dizzy earth to the chassis