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Old 12-03-2011, 12:12 PM   #1 (permalink)
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Exclamation Unplugging o2 sensor

Ok, doing downpipe right now and I've got the O2 sensor "unlocked" and is moving freely, however the cables are still attached. I dont see any way to unplug or disconnect these cables...?!?! How the hell do i take it off? I'm stumped and I read that these things break easily and cost easily $400 to replace....

I see the cables, the black connector to the metal thing and it looks like the metal thing is a shroud that then "connects" to the main plug that is screwed into the upper part of the stock downpipe.

Help!
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Old 12-03-2011, 02:02 PM   #2 (permalink)
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I am really sorry for the size. OK. looking at the O2 sensor.

Which do I disconnect from:

A: The top black part where the cables directly come out from
B: the metal part that connects to the main sensor
C: The main sensor
D: the wiring harness from the other side and then just feed it back through.

(D: seems the hardest as the wiring harness I've got unbolted but it won't come out properly, and the O2 sensor wiring splits to two different plugs altogether)
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Old 12-03-2011, 02:24 PM   #3 (permalink)
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http://support.corksport.com/instruc...113-10-WEB.pdf
step 9
this isnt very helpful but going of that it sounds like you remove the whole o2 sensor from the downpipe. so i guess c?

to be sure i guess wait for someone like tigray to respond.



O2 SENSOR REMOVAL

i think that is more related. sounds like there is a clip that you need to get at? as said in there. its apparently a PITA.
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Old 12-03-2011, 02:35 PM   #4 (permalink)
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Quote:
Originally Posted by fivefingerdeathpunch View Post
http://support.corksport.com/instruc...113-10-WEB.pdf
step 9
this isnt very helpful but going of that it sounds like you remove the whole o2 sensor from the downpipe. so i guess c?

to be sure i guess wait for someone like tigray to respond.



O2 SENSOR REMOVAL

i think that is more related. sounds like there is a clip that you need to get at? as said in there. its apparently a PITA.

Yeah thats why I'm stuck I have NO friggen clue what this "clip" is. the corksport instructions were what i was working off of, they basically breeze through that part without any detail, yet take five photos of some fucking stupid ass bolts that a blind rat could figure out how to remove...!?!?!


Only clip i can see/think of is the one at the end of the O2 sensor wire that leads to the drivers side.
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Old 12-03-2011, 03:03 PM   #5 (permalink)
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Here's a pic of it uninstalled:
http://a248.e.akamai.net/origin-cdn....SUX188G1-2.jpg

(if that doesn't work: OEM First Exhaust O2 Sensor: MS3 )

The plugs are like 12-18" away from the sensor if you follow the wires.
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Old 12-03-2011, 03:10 PM   #6 (permalink)
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I just unscrewed the whole thing from downpipe, just be gentle
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Old 12-03-2011, 08:14 PM   #7 (permalink)
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nevermind, OK. just for anyone else's future reference, you can do it this way:

follow the cable for the O2 sensor all the way around the motor. It ends up at the driver side under the battery (i took out the battery because damn that thing was in the way!) and took the tray out too. THe cable is held down by two "corkscrew" bolts and a REALLY STUPID PLASTIC CONNECTOR EXACTLY at the back of the motor, fucking thing is basically just one of those expanding cone things and it kept me stuck for a while. Either by some grace of God, find a way to squeeze it and push it through or do what i did and snap it off. Now you can get to the bracket that was under the battery. You can squeeze the top part of the connector and slide the two leftmost cables out (the main o2 sensor splits to two plugs, while the 2nd sensor is only one at the back)
then you can pull the whole goddamned thing out.

seriously the biggest waste of time all day. that and now im stuck with the stupid connector for the alternator. i'm not sure how to take that off since it faces the bottom-back of the car and i can't get much grip with it. I figure i'll put everything away today and finish it tomorrow.
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Old 12-04-2011, 06:20 PM   #8 (permalink)
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hmm
Your A, B, C, D pic- that's all one piece.

I didn't unplug either of mine & don't see why you would. Just be careful with the wires, both as you unscrew them, and wind them up a bit before you screw em back in. Anti-seize.

What kind of an O2 removal device did you end up with? That's why the o2 socket has the slot- for the sensor wires.

Didjya finish up? Whaddya think?
How much are you cutting your WGDC?
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Old 12-04-2011, 08:22 PM   #9 (permalink)
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Quote:
Originally Posted by TiGraySpeed6 View Post
hmm
Your A, B, C, D pic- that's all one piece.

I didn't unplug either of mine & don't see why you would. Just be careful with the wires, both as you unscrew them, and wind them up a bit before you screw em back in. Anti-seize.

What kind of an O2 removal device did you end up with? That's why the o2 socket has the slot- for the sensor wires.

Didjya finish up? Whaddya think?
How much are you cutting your WGDC?
Im actually still not finished. Got the O2 off and started unbolting the stock downpipe from the turbo and I busted my forearm and hand pretty bad so any time I get stuck on a bolt/nut it hurts a lot to move around.

Only just got to the point where i need to loosen/remove the bolt(s) from the wishbone mount under the motor, then remove the top bolt to raise the motor a little and take the entire stocker out... I see there's blue threadlock on it so I'm aware im going to have a bitch of a time removing it, but i'm out of energy and am sore as hell... If anyone has any tips for removing it, it's the last thing i need to do and I know putting it all back together is going to be a breeze.
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Old 12-05-2011, 08:36 AM   #10 (permalink)
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Damn, she's makin' ya earn it, huh?
Did you install your RMM originally, or did a shop do it?
Am I reading that you're pulling the alternator as well? I found that wasn't needed, but if you're mostly there it will add some room. I just decided the effort to remove the alt. wasn't worth the payoff.

Remember weight of the engine on the jack, no more
- don't lift, but take the weight.

loosen all the RMM bolts a few turns, removing completely just the front main bolt.
- you want some movement to the mount so it's easy to reinstall, and you want the mount to drop out of the way.

Passenger mount is just removing the top bracket- bolt & two nuts I think it was, the lower the jack just an inch or two, not much at all.
- after lowering, you can grab the valve cover & pull towards the front of the car, just enough to let the DP pull up & out. It takes some finess & cussing to find the right spot, but it will lift right out when the stars align just so....
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