Configuring a 3 wire O2 sensor?????

[89K5guy]

I am currently running headers(no cats) with a single wire O2 sensor but having a rich condition.What is the best way to wire in a 3 wire sensor where my single wire sensor is now?

 

[neverendingproject]

Add hot and ground. Sensor wire is the same.

 

[89K5guy]

Where is the best place to run the hot and ground out of harms way yet with ease of installation?

 

[neverendingproject]

It doesnt matter about the ground, but you will have to find a switched 12v source for the power. Do a search, there is a part number for a 3 wire connector from gm, but I dont know it. That would probably be easiest.

 

[89K5guy]

Thanx for the help

 

[dyeager535]

Take the time and run at least the hot from your fuse panel. Use one of the empty hot in run slots across the top with a factory locking connector.

 

[mr.smartass]

afs-74 i believe is the acdelco number, i just ran mine through a hole in the floor up to the fuse box, to a 12v switched spot, very easy install and fixed all my problems.

 

[89K5guy]

I am buying new headers soon so when I install them I will use this 3 wire O2
sensor instead of the 1 wire.Now I understand why my SES light would come on sometimes then go out.It also explains why I am running a little rich!