VAM/O2 sensor upgrade question

92dangerranger · Sep 8, 2009

Hey guys my 92 2.3T is running great and has over 12,000 miles on the engine now... but I'm wanting to upgrade to a 3'' VAM and a newer ECU. I know you have to use the 3 wire O2 sensor but i was wondering if would have to re-pin the wiring harness? What are the other two wire on the three wire O2 senor?( I'm guessing one is a hot wire) Right now I'm using a 86 TC ECU, VAM, and the single wire O2 sensor. Just wondering how much work it would be to swap over?

BlackBII · Sep 8, 2009

Some info here:

http://www.mikewalsted.com/tbird_LA3.html

http://www.gt350mustang.com/eecspecsturbo.htm

I would ask the guys here: They know everything
http://natomessageboard.com/cgi-bin/Ultimatebb.cgi

RacinNdrummin · Sep 8, 2009

Or just go to Turboford.net, youll definately find the info there.

Bill G · Sep 8, 2009

Which ECU are you running right now and which one do you want to swap to? You can do alot of stuff with a turbocoupe ecu with a chip and a little tuning. Just depends on how much you want to spend to get more performance.

scotts90ranger · Sep 8, 2009

did you use the TC harness? I just used the ranger harness which was already wired for the 3 wire sensor, but am running a 4 wire sensor, the 4th wire is just a ground for the heater on the sensor.

the 4 wires are as such (not the right order, just what the wires are):
signal
signal ground
heater power
heater ground

as I said above the 3 wire sensor is the same as the 4 wire except the ground for the heater is in the case of the sensor instead of separate. I can help out what wire is what, but not right now, maybe tomorrow...

92dangerranger · Sep 11, 2009

Thanks guys....I'm running the 86 TC computer and harness. My truck was a 3.0 so I had to use the TC harness. What is the best ECU to run....SVO or 87-88 TC?

VAM/O2 sensor upgrade question

92dangerranger

15+ Year Member

BlackBII

Ranger Custom

RacinNdrummin

15+ Year Member

Bill G

20+ Year Member

scotts90ranger

25+ Year Member

92dangerranger

15+ Year Member

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