Stock o2 sensor with headers?
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Joined: Jun 2016
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From: Bangor, Maine
Car: 1985 Pontiac Trans Am WS6
Engine: 360ci sbc
Transmission: T-5 non-WC
Axle/Gears: 3.23
Stock o2 sensor with headers?
Hi there guys, I'm just about done installing my hooker headers on my 85 Trans Am, and I've got the stock O2 sensor out and whatnot but will it be fine for my headers or should I buy a new one? Thank you!
Joined: Sep 2005
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Stock o2 sensor with headers?
If it worked before, it's "OK".
No way for anybody out here to know whether it actually is in need of replacement.
Main issue, besides that, will be, if it's too far from the engine to reach proper operating temp. In which case, you'll need to replace it with a heated one, and find the best way to power the heater circuit. Try it and see, go from there.
No way for anybody out here to know whether it actually is in need of replacement.
Main issue, besides that, will be, if it's too far from the engine to reach proper operating temp. In which case, you'll need to replace it with a heated one, and find the best way to power the heater circuit. Try it and see, go from there.
Thread Starter
Member
Joined: Jun 2016
Posts: 116
Likes: 1
From: Bangor, Maine
Car: 1985 Pontiac Trans Am WS6
Engine: 360ci sbc
Transmission: T-5 non-WC
Axle/Gears: 3.23
Re: Stock o2 sensor with headers?
If it worked before, it's "OK".
No way for anybody out here to know whether it actually is in need of replacement.
Main issue, besides that, will be, if it's too far from the engine to reach proper operating temp. In which case, you'll need to replace it with a heated one, and find the best way to power the heater circuit. Try it and see, go from there.
No way for anybody out here to know whether it actually is in need of replacement.
Main issue, besides that, will be, if it's too far from the engine to reach proper operating temp. In which case, you'll need to replace it with a heated one, and find the best way to power the heater circuit. Try it and see, go from there.
Joined: Sep 2005
Posts: 27,866
Likes: 2,428
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Stock o2 sensor with headers?
Depends... what was/were the code(s)?
Hardly ever hurts to replace something like that. Which is of course not the same as saying "you should" or "your old one is bad" or anything of the kind... think of it maybe as more, resetting the "shot clock" on replacing it in the future.
Hardly ever hurts to replace something like that. Which is of course not the same as saying "you should" or "your old one is bad" or anything of the kind... think of it maybe as more, resetting the "shot clock" on replacing it in the future.
Thread Starter
Member
Joined: Jun 2016
Posts: 116
Likes: 1
From: Bangor, Maine
Car: 1985 Pontiac Trans Am WS6
Engine: 360ci sbc
Transmission: T-5 non-WC
Axle/Gears: 3.23
Re: Stock o2 sensor with headers?
Depends... what was/were the code(s)?
Hardly ever hurts to replace something like that. Which is of course not the same as saying "you should" or "your old one is bad" or anything of the kind... think of it maybe as more, resetting the "shot clock" on replacing it in the future.
Hardly ever hurts to replace something like that. Which is of course not the same as saying "you should" or "your old one is bad" or anything of the kind... think of it maybe as more, resetting the "shot clock" on replacing it in the future.
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From: Fort Collins, CO
Car: 1991 Firebird Formula
Engine: 5.7L TPI
Transmission: 700r4
Axle/Gears: 3.23
Re: Stock o2 sensor with headers?
The wire *should* be plenty long to reach the collector on shorties. Whether you will need a heated o2 is a toss up and depends on your headers, I've been using the non-heated on my 1 3/4" primary headers, and although it does work, I'm suspecting it may be contributing to some weirdness with BLM. And for future reference, to get the codes from the computer you can jumper the A and B pins on the ALDL connector and it will blink them to you, no fancy computer required.
Thread Starter
Member
Joined: Jun 2016
Posts: 116
Likes: 1
From: Bangor, Maine
Car: 1985 Pontiac Trans Am WS6
Engine: 360ci sbc
Transmission: T-5 non-WC
Axle/Gears: 3.23
Re: Stock o2 sensor with headers?
The wire *should* be plenty long to reach the collector on shorties. Whether you will need a heated o2 is a toss up and depends on your headers, I've been using the non-heated on my 1 3/4" primary headers, and although it does work, I'm suspecting it may be contributing to some weirdness with BLM. And for future reference, to get the codes from the computer you can jumper the A and B pins on the ALDL connector and it will blink them to you, no fancy computer required.
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Joined: Sep 2000
Posts: 2,499
Likes: 194
From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Stock o2 sensor with headers?
They're like $25. Swap it out. You are going to have to change it eventually anyway.
Joined: May 2013
Posts: 1,493
Likes: 98
From: CT
Car: 86 Trans Am WS6
Engine: 383 stroker
Transmission: 700r4
Axle/Gears: 9 Bolt Torsen 3.70
Re: Stock o2 sensor with headers?
yeah just get a new one, one less thing to worry about. if youre going through the work of a header swap, why cheap out on the last part? you said its stock so that thing is living on borrowed time
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