I would replace all 4 sensors if you have the cash. The extra air from the S/C might kill them anyway
The front are relatively new, I changed them not too long ago. The backs are new.
After doing all the standard stuff I unplug the connectors and the go under the car and unscrew the O2s. Once they are out, I reach my hand along the tranny to get the wire out as many spots as possible. It is pretty tight so I can only get a couple. For the rest I use a screwdriver to pop them out. Since they cannot be seen you have to do it by feel. The next step is pretty much snaking them out.
(I have 2 O2 wrenches and an O2 socket set that helps me get to the tight spots)
passenger side S2 is easy…but I thought driver side S2 was a pain? When my B1 S2 sensor died a couple of people said it was easy and it’s a good thing it wasn’t the other one. Maybe they meant S1.
when jay from JHM did mine at a meet his technique was pretty neat. He just cut the end off undernearth, then went up top, disconnected the sensor, and pulled it out and the wire from the top. It left the sheath attached to the trans, which is fine. Then he ran the new one up and pinned it in. Just saved him from having to deal with the PITA of getting in to undo/cut every tie.
I think B2 S2 is actually easier than B1 S2. Once the coolant resevior is out of the way there isn’t much that is in the sensors path. Both front sensors are a pita, but not too bad if you have the rigt tool. The biggest problem with the front sensors is that there is very little room to get a tool in. I found that an O2 socket with a long extension works best.
cool. What’s the deal then…sensor is fine…but something else?
It was the sensor, the CEL is gone.
Nice.
Logs! Vids!
I wish. I haven’t driven the car all weekend due to a family event. I thought I would be able to get out there tonight, but I had kid duty and I just woke up after falling asleep with the TV watching me. Off to bed for the night, but I will try tomorrow.
Get headers and your 02 changes take minutes lol
x2, just use the replacement sensors… takes longer to get the car in the air then it does to swap the sensors
What size is the wrench for the 02’s? It would be nice to have a set.
The socket is 22mm or 7/8". Snap-on has decent options. The flex handle works best for the lower sensors, and I use the 3/8 socket for the fronts.
http://buy1.snapon.com/catalog/tools.asp?tool=all&Group_ID=1448&store=snapon-store
That is the next mod for me…
Just bought myself a socket off Amazon. Mine are old so I’m sure they need replacing soon anyways. This is the same thing trexturk used to remove my front sensors when he did my downpipes.
x3! I feel like I’ve swapped O2 sensors more than anyone should have with my trial and error attempts. Even with a lift, it almost takes longer to get the car in the air than changing one of the sensors.
Also, just for other people’s reference. Bank 1 is passenger side, Bank 2 is driver’s side. Good info to keep in mind when people or codes refer to a specific bank.
Thanks Joe and Speed…just what I needed.
So after trying a few times I had to have the Count upload a video for me. It is just a quick in car 3rd gear pull (still on the tame tune).
how’d you embed that?
oh snap! cool. Sorta embedded.
On the video’s page (AR vids) just copy the ‘BULLETIN BOARD’ code and paste into a thread.
Good stuff Speed. Those MPHs are rising at a nice rate…haha