First off, stupid question, where exactly is the O2 sensor. I've been popping Code 13s like crazy this past week and have gotten them intermittently for the last 4 months. The SES light is really getting annoying so I think I'm gonna break down and change it out. How much do these things cost and how hard of a job is it change it out? Any help as always is appreciated!

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1986 Berlinetta, 2.8L, newly rebuilt 700R4, 3.42 Posi. 130K miles and counting, K&N air filters.
Wins:
1996 Mustang
1994ish Olds Acheiva
1994ish Saturn SC1
Losses:
1999 Grand Am SE
1996ish Honda Accord (twice)
1990ish Vette (never should have been dumb enough to race a vette in the V6)
Late model ZX2, five speed (3 friggin stoplights in a row)

 

They're really easy to remove, at least mine was. Mine's located on the exhaust pipe right underneath the passenger side floor pan, towards the front.

Should be able to pick one up at the local parts store for $15-20, and be sure to get the special tool to remove/install the sensor. It's basically a socket with a slot cut down the side to accomodate the sensor's wire(s).

 

Doesn't sound too bad. I'll have to tackle it either this or next Saturday.

 

I just changed mine just a few hours ago.It cost me 18.50 for a bosch 02 sensor.Trust me,you'll have to put some *** behind the wrench to get the old one off.My old one was about 2 years old.It had almost bonded with the exhaust . When your under the car you can't miss it.It's above the cat about a foot or two.

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[This message has been edited by Kevin S (edited November 08, 2000).]

 

The Bosch oxy sensor "should be" #12014.. same as the v8 guys use.

I've had some bad luck with that special socket... because of the slit in the side, it's not as strong as a real socket. One sensor I changed didn't want to budge.. I was turning it so hard, that the socket actually widened up, slipped on the sensor, and got stuck there.

I tackle it two ways: I can use a large open-ended adjustable wrench, if the sensor's loose enough. If not, I cut the wire off, and put a "real" socket over it.

Do this when the exhaust is still pretty hot... as in, not enough to give you a 3st degree burn, but hot enough to give you a 1st degree. Know what I mean? A hot exhaust will help the sensor turn easily; too hot,and you can strip the y-pipe fitting out. (A welder can replace it.)

Also don't crossthread the oxy sensor.. I did that my first time changing it.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Oh- damn- I hit submit just as I thought of something. Check the oxy sensor wire!! You can get a code 13 if the oxy sensor wire melts on the exhaust- that grounds it out, and the computer thinks it's running too lean. I've torched mine a few times; now it's tied up and out of the way of the heat.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Tom P is right check the wire, I melted one once...

 

Thanx everybody!

 

SHould I change the O2 sensor if it has never been done to my knowledge?

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1992 RS 3.1L
Mods:
K&N Drop-in filter

Mods to come:
New Plugs and wires(need advice on types)
Dynomax Cat Back
MSD GM Blaster Coil
Cold air intake
NEED OTHERS HELP ME!!!!

 

Go for it sooner or later you wil hae to do it and also it increase MPG adnd u get a litte more power.. i just use a normal wrench and it pops off use anti seize on the threds of the new one it will save u time nect time u go to replace it

 

Did anyone ever use a Borg Warner O2 sensor?
I just happen to have on the side and I'm wondering if I should use that or get a Bosh sensor?