[SOLVED] Need help with 02

baldness

baldness

Greenie N00B Member
Greenie Member
I recently purchased an 08 speed3 and I was going to replace the downstream o2 sensor. When I got underneath the car the sensor is there but the wires are cut flush with the top of the sensor and I cant find the plug. To be honest this is my 1st mazda so Im not even sure where the plug comes from to look for it. But I looked pretty hard for it and I cant find it. Anyone have any ideas what may be going on?
 
The plug for the secondary is on the top of the transmission below the intake/turbo/battery area. It should be a gray harness side plug with a gray sensor side plug, four wires, four pin plug. Pics in a moment

Edit for picture reference:

This is the o2 sensor and the plug side20240420_165722.jpg

This is where it plugs in

20240420_165741.jpg

From the driver side fender

20240420_165937.jpg

Also, Whalecum to MSO.

image (4).png
 
And if the pics didn't help, snap a pile of pics and upload them here.

You got this. Welcome to mso!
 
You guys are awesome thank you so much! I am pretty busy the next week or 2 but I am going to try my best to get out there and find it.
 
Raider said:
And if the pics didn't help, snap a pile of pics and upload them here.

You got this. Welcome to mso!
Click to expand...
Im sorry for the late update.. I was able to go out today and work a bit on it and vola! It was right where you pointed me to. Thank you so much. I still have quite a bit to do on the car but I am very much looking forward to getting it done.
Thanks again
 
Get to fixing.

Also, you should post in the new member area and introduce yourself, post some pictures of the car and your mods list. Others will like to see. Myself included.
 
Rokusek said:
Get to fixing.

Also, you should post in the new member area and introduce yourself, post some pictures of the car and your mods list. Others will like to see. Myself included.
Click to expand...
Ill do that as soon as I get her down from the ramps. Right now it looks like shes going to be there at least for another week. Life is taking priority at the moment lol.
 
baldness said:
Ill do that as soon as I get her down from the ramps. Right now it looks like shes going to be there at least for another week. Life is taking priority at the moment lol.
Click to expand...

Completely understandable, it happens to us all.
 
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