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Old 05-14-2009, 05:10 PM   #1
Un0RiGiNaL
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Default How to extend o2 sensor without wasting 30$ on extension?

Does anyone know how/ what kind of wire you need to extend the o2 sensor? Im gonna do the borla swap/catpipe and I dont want to spend 30$ on a sensor extension

ive searched but couldnt find out how
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Old 05-14-2009, 05:16 PM   #2
yarrgh
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i've heard you can get a spark plug anti-fouler and drill it out to allow for an o2 sensor, but have never done it.
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Old 05-14-2009, 06:16 PM   #3
aclver1
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I bought the extension and both connections were wrong so I still have to cut the wires but at least I had the right wires. Sorry I searched forever and couldn't find anything not even the right extender or connectors. I know its a braided small gage wire maybe 16 or 18.
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Old 05-14-2009, 06:22 PM   #4
piker28
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After personally cutting up my o2 sensor when i changed out my catpipe. spending the 30 bucks for the extension is WELL worth it
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Old 05-14-2009, 06:55 PM   #5
olsen726
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i just bought some wire at fredmeyers, and did mine. it was really easy and i havent had a problem yet
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Old 05-14-2009, 07:39 PM   #6
blk6s
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The cat pipes from rallisportracing.com don't require a o2 sensor wiring extension.
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Old 05-14-2009, 10:17 PM   #7
Un0RiGiNaL
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Quote:
Originally Posted by olsen726 View Post
i just bought some wire at fredmeyers, and did mine. it was really easy and i havent had a problem yet
what kind of wire? thats my main question
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Old 05-14-2009, 10:25 PM   #8
GuyLR
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Cut the wire off of a bad O2 sensor. That way you already have the right connector and the wire matches.
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Old 05-14-2009, 10:37 PM   #9
Back Road Runner
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Wire, butt connectors(with shrink wrap, grab a lighter if you don't have a heat gun), wire loom split tubing. I've done this with two O2s so far, zero problems. I run mine with a 3' extension to reach my O2 bung on my aftermarket header. I just grabbed everything from Ace Hardware, and it's all in one isle right next to each other, well at least at my store.
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Old 05-14-2009, 10:43 PM   #10
Un0RiGiNaL
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Quote:
Originally Posted by GuyLR View Post
Cut the wire off of a bad O2 sensor. That way you already have the right connector and the wire matches.
where can i find this
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Old 05-14-2009, 10:43 PM   #11
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Quote:
Originally Posted by Back Road Runner View Post
Wire, butt connectors(with shrink wrap, grab a lighter if you don't have a heat gun), wire loom split tubing. I've done this with two O2s so far, zero problems. I run mine with a 3' extension to reach my O2 bung on my aftermarket header. I just grabbed everything from Ace Hardware, and it's all in one isle right next to each other, well at least at my store.
what kind of wire? isnt there specific wire?
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Old 05-14-2009, 11:38 PM   #12
ballitch
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The stock wiring looks like 18 ga. wire. If you could go to a junkyard and find a spare sensor in a car or laying around, you could use that, as stated above. If you decide to splice in some extra wire in between the sensor plug and the sensor, you should solder it for a good connection. Shrinkwrap and electrical tape are a must also.

Dont use solid core wire w/e you do.

~Josh~
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Old 05-15-2009, 01:14 AM   #13
Forester_007
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Use any copper wire splice them to the O2 Sensor to make it longer thats it. NO biggy
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Old 05-15-2009, 01:27 AM   #14
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spark plug anti fouler drilled out works just fine. i have done it on my car and a friends
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Old 05-15-2009, 01:29 AM   #15
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Any wire. You just don't use solid because it's not flexible. Any multi-strand wire will do, doesn't need to be big either. 18-22awg, doesn't really matter.
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Old 05-15-2009, 01:37 AM   #16
kingbobdole
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Junkyard? I might be crazy, but on my 03 H6 legacy, the rear O2 had a 3' extender the was mounted to the tranny. Unplugged at the front and at the back.
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Old 05-15-2009, 08:14 PM   #17
WcW
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The JDM sensor for the N/A ej25 (my95-?) Legacy has a 26 inch pigtail. The pins are easily swapped from the JDM square connector to the USDM triangular connector. Maybe this is some help somehow.
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Old 05-15-2009, 08:47 PM   #18
Un0RiGiNaL
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I picked up some 10GA wiring is that fine? i forgot what ppl said in this thread when i was there so i just got some 10GA. i got the sleeves and the loom tubing. Is 10Ga wire fine?

WTF is solid core wire?
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Old 05-16-2009, 04:32 AM   #19
SubiFTW
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Just use romraider and wipe the code from your ecu completely, it'll never come back again.
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Old 05-16-2009, 09:41 AM   #20
sniper1rfa
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Solid core wire is just that - it's like insulated coat hanger. Used a lot in house wiring because it's cheap.


10 gauge sounds somewhat excessive. It will work just fine, but will look.... odd.
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Old 05-16-2009, 12:34 PM   #21
Un0RiGiNaL
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eh ill just go pickup some 18ga it was only like 60 cents
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Old 05-16-2009, 04:45 PM   #22
scoob2.5i
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dude its SOOOO easy to extend.

snip the wires, strip the wire, take 18ga wire and extend each wire the same amount of distance, but dont twist it all up. solder the connections to make sure they're strong. heat shrink it, then electrical tape the whole length of the extension to make sure. I did this when i did the uel on my 2.5i


SOOO EASY and worth saving the $30 each extension.

GOODLUCK buddy
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