Is the oxygen sensor on a SVO a one wire or 3 wire?

[KenneBell]

So I am converting my 92LX to have an 85 SVO motor. The oxygen sensor that is in the SVO motor right now is a 3 wire. I picked up a new o2 at Kragen auto parts, when I got home the new bosch sensor only has one wire. I figured I must have received the wrong part so I went online and checked the part # on Bosch's website and it reccomends the sensor that Kragen gave me ( the one wire). Anyone with an 85 or 86 SVO know whether their o2 sensor is a one wire or three wire. Thanks!!

 

[Stinger]

My 85 SVO is a 3 wire...I find 02 sensors to be hit or miss on 2.3T's...just look at what you have and keep throwing different years/cars out there until you get the right one...

 

[NY Eric]

O2 sensor

Ont he 84 and 85 motor they use a 3 wire. On the 85.5 and 86 they use the single wire o2

 

[KenneBell]

If I want to swap computers from the 84 computer to a 86 computer do I have to change the oxygen sensor and connector from a 3 wire to a 1 wire?

 

[Stinger]

Yes, or swap to an 87-88 TC computer instead and get the same HP increase for less money...and you can still use the 3 wire 02.

 

[NY Eric]

The 87-88 TC computer is easier to find (as stinger said ) cheaper, and people claim it has a slightly faster processor. I just dont undewrstand why people are so hot for the svo cpu? The LA3 is better IMHO. If you are going through the hastle it is your best bet.

 

[Keasbey]

So if I have a '87 stang with a '86 TC computer, I have to change my oxygen sensor and my connector to a single wire?? Or I can keep this one and swap my 0² sensor on the turbo exhaust?

 

[Stinger]

Use the oxygen sensor that the car your ecu came out of uses...bottom line.

86tc ecu = 86tc sensor
88tc ecu = 88tc sensor
etc.