[armyssoldierboy]

I'm getting a new front o2 sensor cuz I burnt mine and I need help installing it cuz I don't have that many tools. Anyone know how to do this and have tools thats willing to help? Plz, I got these cheeseburgers man!!

[DarwinsFool]

lol...

[BANKAI]

19mm wrench for the 02, zip ties for the wire(gotta keep it clean ya know bro =) )
and also antiseeze if the the 02 sensor doesn't come pre- "LUBED"

[scby rex]

22mm^^ anti seize on the threads only

[armyssoldierboy]

just an open 22mm wrench? and anti-seize? the bosch one is direct plug n play right? is it THE stock one or better than stock.

[scby rex]

same as stock, but not oem

[gabedude]

The size for the wrench is standard, not metric on all O2 sensors. You do not need anti-seize.

Gabe

[scby rex]

If you want to strip it. All import o2 sensors Ive changed where not 7/8, it "fits" but is not the right size. 22mm is your friend.

[USNSTI]

The best trick is to disconnect the wire first. That way you can slide the closed end of the wrench onto it. This will greatly reduce your chances of stripping or other problems.

[scby rex]

word^^ It stops the wire from bunching up also. I talked to him about it last night, he has a header so its pretty easy.

[gabedude]

Originally Posted by scby rex

If you want to strip it. All import o2 sensors Ive changed where not 7/8, it "fits" but is not the right size. 22mm is your friend.

I have never had a problem with a 7/8 wrench on any O2 sensor... The math is really close (reason why you can get universal O2 sockets I suppose).

1 inch = 25.4 mm.

7/8*25.4 = 22.225 mm.

It is only slightly bigger. Anti seize doesn't do much. It burns off.

[armyssoldierboy]

i ordered my o2 sensor and it'll be here wed. i also bought a 22mm wrench, its kinda big unless theres a smaller one that'll fit in there a little easier. i asked and that was the only one, about a foot long.

[gabedude]

I use a regular wrench as well on Subarus. I use an O2 socket with the notch on other cars. The front one is a ***** on the stock manifold. Rear one is cake.

[scby rex]

he doesnt have the under tray, so its about as easy as the back one.

[FlyingPerformance]

its the front one. good luck getting a regular wrench on it, gotta use the special tool, trust me I changed 4 of them on my 06 and there is basically no way to get a regular wrench on it with the frame and suspension pieces right in the way. With the o2 sensor wrench its super easy to do, just as easy as the rear IMO. O2 sensor socket and a 2" extension.