stylEmon

iTrader: (2)

What color is this wire on an 87 TII?

The Hayes manual says its Gy, which is green w/ yellow stripe. But I hooked up my AFG to that wire and now the gauge goes crazy when I turn on the Left Blinker! It looks cool, but doesnt help me with my AF Mixture much.

I realize that many if you arent keen on the AFG but I'd appreciate helpful replies ONLY. I already have the gauge and just want it to work properly.

Thanks

stylEmon

iTrader: (2)

Has anyone hooked up an AFG before?

What wire does it hook up to?

Is it directly off the cpu, or is there a better place to hook the gauge to?

F1blueRx7

iTrader: (5)

s4/s5 turbo or non turbo?

stylEmon

iTrader: (2)

S4 TII

The Wankler

iTrader: (14)

On mine it is a green wire. Where did you hook it up. By the CPU, or the bac valve?

stylEmon

iTrader: (2)

By the CPU, next to the fuse box.

Is that where you hooked it up?

A green wire huh? How did you know that was the right wire? The manual said green with yellow stripe.

F1blueRx7

iTrader: (5)

I was feeling generous cause I'm home sick with the flu....

My5ABaby

iTrader: (7)

GY = O2 sensor
G = intake air temperature sensor (dynamic chamber)

stylEmon

iTrader: (2)

See, I hooked it up to Gy, and it doesnt work, its some how reading my Left Blinker signal.




I will try finding 2D directly instead of a wire color. Thanks, hope you feel better!

My5ABaby

iTrader: (7)

The Turn Cancel System has a G/Y wire. Maybe you used that or something. 50-60 FSM

stylEmon

iTrader: (2)

Ya, funny how I tapped into that one. Thanks for the help, I'll play with this when I get home tonight.

and f1blueRx7, That Diagram is a big help as well!

My5ABaby

iTrader: (7)

So that is what you did?

stylEmon

iTrader: (2)

ya, must've. how else would the blinker be affecting the AFG?

So I suppose there are multilpe Gy wires. Thats a little confising!

My5ABaby

iTrader: (7)

Well, the O2 is GY, the Turn Cancel System is G/Y. Confusing... yes. But, there's only so many colors they can use.

stylEmon

iTrader: (2)

So what's the difference between GY and G/Y?

Does G/Y have a band around the wire rather than a stripe down it?

edmcguirk

Don't you want the ECU in the passenger footwell and not the CPU by the fuse block?

The CPU does turn signals and the ECU does fuel control.

stylEmon

iTrader: (2)

Have you hooked up a AFG? If so, did you use the passenger side ECU?

Maybe thats where my problem lies...

The Wankler

iTrader: (14)

I just spliced into the wire coming off of the O2 sensor in the engine bay.

stylEmon

iTrader: (2)

I suppose that would be the most direct route!! HA

I was already tearin into the fuse box to add a slot for the gauge lights. (I hooked up 3 new gauges.) So that's why I tried to find the wire inside the car.

Plus it keeps the engine bay a little neater. If all else fails I may go for the wire off the o2 sensor, but I'd really like to get it done inside.

Thanks

Smoken'

iTrader: (1)

Your at the wrong side of the car there homie. You need to be over on the passenger side at the ECU. Take the door sill out and pull the carpet back. Then take the metal cover off and you will see the ECU. It should work fine after that.

Aaron Cake

iTrader: (1)

The O2 wire is the a gray shielded wire. For most of it's lengh, it is covered by a shield of braided wire with a gray jacket. So if you make your connection anywhere but at the ECU or at the sensor itself, you will get irratic readings as you have connected to the shield instead of the O2 sensor wire.

I've attached an image showing the common pins on the ECU. This image is not mine, it's been posted to the forum before.

stylEmon

iTrader: (2)

Rock on! I'll take a look at that after work and post my results.

Thanks for all the helps peeps!

Kind of a N00B mistake, but gotta learn somehow.

I'll now go fall on my own sword

stylEmon

iTrader: (2)

Thanks, It also seems I may be tring to connect to the CPU by the fuse box.

I've been advised to look over on the passenger side for the ECU.

Aaron Cake

iTrader: (1)

Yeah, that would do it. While you are waiting, head up to the FAQ and download your copy of the Factory Service Manual.

F1blueRx7

iTrader: (5)

Hrm yeah I posted my diagrams... sort of assuming you knew that the ECU is what handles Engine function like 02 etc. hehe.