safe location to install heated O2 sensor in 87 tbi 305 with long tube headers

[Sharkey]

Location on header or if in the reducer 12 ,3 ,6 ,9 o'clock position? pics?
Thanks in advance.

 

[bucket]

In the left collector or reducer works fine. I put mine to the inside, it just has to be installed at an angle so that it can't collect moisture in the sensor or the threads of the bung.

 

[1987 GMC Jimmy]

If you’ve already made the wiring adjustments, proceed, but people on here have said the heated sensor didn’t do any good so when I do mine I’m gonna try to keep the single wire sensor and see what happens. I’d be interested in a picture when you’ve got it installed.

 

[Sharkey]

In the left collector or reducer works fine. I put mine to the inside, it just has to be installed at an angle so that it can't collect moisture in the sensor or the threads of the bung.

Thank you good info

 

[Sharkey]

If you’ve already made the wiring adjustments, proceed, but people on here have said the heated sensor didn’t do any good so when I do mine I’m gonna try to keep the single wire sensor and see what happens. I’d be interested in a picture when you’ve got it installed.

I'v read that with long tube headers the exhaust cools down at idle and goes into open loop till the sensor warms back up, With a heated O2 it stays in closed loop for a better idle and better air/fuel mixture.Poss better fuel economy.I am a long way off from it running but when I get it installed I put up pics, If I can figure that out.
Gawd I look at what I did to a running square to do what I want. It's like the scare crow in the wizard of OZ.Pieces all over the place

 

[smoothandlow84]

Heated sensors don't do ****. Installed mine...drank the kool - aid and nope...doesn't do a damn thing.

 

[smoothandlow84]

In the left collector or reducer works fine. I put mine to the inside, it just has to be installed at an angle so that it can't collect moisture in the sensor or the threads of the bung.

Or......imstall the sensor on the top portion of the header before the flang instead of an angle. There are several ways of installing them, but at an agle? Thats a new one for me. If mounted vertically, they wont collect moisture. Hell, slightly above horizontally would work too.

 

[bucket]

Or......imstall the sensor on the top portion of the header before the flang instead of an angle. There are several ways of installing them, but at an agle? Thats a new one for me. If mounted vertically, they wont collect moisture. Hell, slightly above horizontally would work too.

That's what I meant, just have it oriented so that moisture can't collect. Due to different header designs, right on top is not always ideal.

And I know your sensor didn't change anything for your application, but mine made a bit of a difference. I got better driveability on cold starts in the winter time. Not a night and day type of difference, but I don't regret doing it.

 

[smoothandlow84]

It's always hot here. Cold starts aren't much of an issue....lmao

 

[Sharkey]

OEM O2 is bad, needed a new one, so for 17 bucks I bought the harness.Single wire and 3 wire O2 same price.Headers are new so, What the heck. Kool aid or not I went with it,it made sense to me .SEPA gets cold in the winter time.
I have to check clearance on where to mount.I will mount it in reducer so I can get as close to vertical as I can.
Thanks for the input.