What O2 sensor socket size?

94sentraSER · 02-14-2007, 06:35 PM

So i pulled a code for a rea O2 sensor shorted on my G20, i need to replace it but i need to buy a O2 sensor socket...i looked at Sears and they have a universal O2 socket that says it fits SOME O2 sensors but doesn't specify which ones.

Does it matter if i buy a universal socket? Or are all sensors the same size? I just don't wanna go spending 50 bucks on a quality socket if it won't even fit mine....

TIA

PS What site is the best to use to buy O2 sensors?

b14Se_R · 02-14-2007, 06:40 PM

most are all the same but a 7/8 combination wrench should do the job if you got one

eric96ser · 02-14-2007, 07:22 PM

The rear O2 is either a 17mm or a 19mm. I use a flare nut wrench on those, since they are usually rusted from being under the car.

94sentraSER · 02-14-2007, 07:57 PM

im assuming a 7/8 open ended wrench? i got one of those but someone told me to buy a O2 sensor socket as to not potentially strip the sensor

TurboTank · 02-14-2007, 08:27 PM

7/8" line wrench works good for me

eric96ser · 02-14-2007, 08:36 PM

Which sensor, the front or the rear? Your original post says

Quote:

So i pulled a code for a rea O2 sensor shorted on my G20, i need to replace it but i need to buy a O2 sensor socket...

When you put rea, I'm assuming you meant rear.

94sentraSER · 02-15-2007, 12:06 PM

oops yes i meant rear...

eric96ser · 02-15-2007, 12:16 PM

The rear is not a 7/8 or 22mm, those are too big. The rear is either a 17mm or a 19mm. Find a flare nut wrench with both, and that will work. If you are going to replace it anyway, you can cut the wires and use a closed end wrench to remove it.