How to hook up oxygen sensor?

andrewb_80

New Member

Sep 25, 2005

38

0

0

Dayton, Oh

Nov 21, 2005

#1

• Nov 21, 2005

• #1

I have a 94 v6 car that i changed to a five speed carb 5.0 I am trying to hook up my air to fuel gauge but i cut off the plug on the o2 sensor as well as the harness for the o2 sensor because i didnt need it, but i forgot that i wanted it to hook up this gauge. My question is how do i hook the o2 sensor back up? Basically I have 4 wires from the sensor and 4 wires from the harness and have no idea which wires go to which because there are no plugs on either end. Thanks.

 

98stangv8

Active Member

Oct 3, 2003

1,036

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36

fayetteville, nc

Nov 21, 2005

#2

• Nov 21, 2005

• #2

andrewb_80 said:

I have a 94 v6 car that i changed to a five speed carb 5.0 I am trying to hook up my air to fuel gauge but i cut off the plug on the o2 sensor as well as the harness for the o2 sensor because i didnt need it, but i forgot that i wanted it to hook up this gauge. My question is how do i hook the o2 sensor back up? Basically I have 4 wires from the sensor and 4 wires from the harness and have no idea which wires go to which because there are no plugs on either end. Thanks.

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aren't they color coded?

 

98CobraClone

New Member

Feb 28, 2003

592

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Ripley, Ohio

Nov 21, 2005

#3

• Nov 21, 2005

• #3

There's a pin on the ECM, but I don't remember which one. That would you would be able to keep all of the wires in the car, rather than running underneath. I'll do some checking......

 

Skymarshal

Member

Nov 5, 2004

572

0

16

Dallas

Nov 22, 2005

#4

• Nov 22, 2005

• #4

If it's the same as the last O2 sensor I changed, it will have two black wires and two white wires. The white wires are for the heater, and polarity doesn't matter. The black wires are for the sensor, and I don't know if polarity matters or not. Maybe just hook it up and see if it throws a code....

 

O

OxMox

turkeysammichesonhisface

Mar 31, 2005

0

0

0

Palm Harbor, FL

Nov 22, 2005

#5

• Nov 22, 2005

• #5

male end female end

 

andrewb_80

New Member

Sep 25, 2005

38

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0

Dayton, Oh

Nov 22, 2005

#6

• Nov 22, 2005

• #6

Skymarshal said:

If it's the same as the last O2 sensor I changed, it will have two black wires and two white wires. The white wires are for the heater, and polarity doesn't matter. The black wires are for the sensor, and I don't know if polarity matters or not. Maybe just hook it up and see if it throws a code....

Click to expand...

Yes the sensor has two black and two white wires, but i still dont know which wires on the harness do what so i dont know how to connect them to the sensor

 

andrewb_80

New Member

Sep 25, 2005

38

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0

Dayton, Oh

Nov 22, 2005

#7

• Nov 22, 2005

• #7

I take that back....the sensor has 2 white wires, one black and one grey. Possibly....black=ground, grey=signal, and white is heater???