A/F Ratio gauge install

st2b

Banned
Sep 15, 2006
589
0
0
Versailles (Lex) Ky
www.myspace.com
I've searched and came up with little information on this, and was wondering if anyone here can help, any help would be amazing.

I have a turbo 02 sensor, and the standard A/F gauge, but the turbo 02 sensor doesn't connect with the GE wiring harness.

The A/F gauge says "MK1 series, Bokee performance" and just reads lean, stoich and rich (No a/f numbers, just leds).

Sorry if this doesn't make sense it's hard to explain. I'm asking If anyone can help me out with installing a turbo 02 sensor on a GE motor.

If anyone can point me in the right direction of where to start that would be great, or better if someone has done this before.

Matt

---------

My attempt at making myself clearer

My goal : To install an air/fuel gauge on my 7m-ge

What I have : 7M-GE 02 sensor, 7m-gte 02 sensor, and an air/fuel gauge

The air/fuel gauge has 5 wires coming from the back.
1 single black wire - Negative ground to power the LEDS
1 green wire - 02 sensor wire
1 red wire - Positive battery to power LEDS
2 black wires stuck together (Double wire I guess you can call it) - Negative and Positive to power the indaglo
 
Last edited:

jetjock

creepy-ass cracka
Jul 11, 2005
9,439
0
0
Redacted per Title 18 USC Section 798
Just hook the heater wires across any circuit that comes on with the key. Fuel pump circuit would be better though. That way the sensor would heat only when the engine is running. The tap points aren't far from the sensor either. Be sure to fuse it...
 

jetjock

creepy-ass cracka
Jul 11, 2005
9,439
0
0
Redacted per Title 18 USC Section 798
Because it works better. The real question is why not use the gage with the stock one wire sensor?

"Better" is relative though. The HO2S was designed with two principles in mind: 1) To get the engine into closed loop faster and 2) To prevent it from "falling out" of closed loop during prolonged idle when exhaust temps are low. Other than that either type of sensor work equally well for fuel control.

If you want to use the 3 wire: Connect one heater wire to ground (under one of the sensor's mounting studs will work), connect the other heater wire to the fuel pump circuit, and connect the third wire to the ECU input for O2 that you already have. Connect your gage to ground and power then connect it's O2 wire to the ECU input one.
 

st2b

Banned
Sep 15, 2006
589
0
0
Versailles (Lex) Ky
www.myspace.com
Rennat;981400 said:
i just want a blinkly light show.
not like anybody tries to race me anyways... they see "supra" on the back and get all scared... haha

Actually I had a kid some up to me and a friend in the Supra at a stoplight, and the guy looked to his passenger and said "Oh my God dude it's a freaking Supra!". And the Passenger said "Race him man" and he goes "No way I'll lose"


I laughed and we drove off