I have a 99 Z24 and recently my check engine light came on. After having the dealership check it, they said it was the sensor mentioned above (an O2 sensor). I have the Haynes manual and it says that I have a sensor before and after the cat. Does anyone know which one this sensor is? (I have ~85K miles on my car) I would like to change this myself if possible or atleast supply my own part b/c the dealership told me that the sensor would cost $258 and labor would be like $200. How hard is this do yourself? And could you please recommend a good sensor for me to purchase?
Thanks!

it could be either one

lol wow they really try and rape you at the dealer. if i remember right the one up front in the bay is the most expensive one and the one right after the cat is cheaper. best thing to do is get a volt meter and test the current going to the sensor. you can get meters from sears for like 20 bucks, thats where i picked mine up.

O2 sensors a pretty simple to change. It's easier to chang the top one from underneath the car. (It is on my 96 Z ) You will need to pick up an O2 sensor socket. It is just like changing a spark plug.

BaggeDCav98 (Unquotable One)best thing to do is get a volt meter and test the current going to the sensor. [/quote wrote:

sorry, that made me laugh a little, I know what you meant, but you gotta admit, buying a VOLT meter to measure CURRENT (AMPS) sounds a little funny. Im sure you meant buy a multimeter or an ammeter to measure current, a volt meter can only measure voltage


You'll never touch God's hand
You'll never taste God's breath
Because you'll never see the second coming
Life's too short to be focused on insanity
I've seen the ways of God
I'll take the devil any day
Hail Satan

(slayer, skeleton christ, 2006)

Doh

Pwned by the quote

You'll never touch God's hand
You'll never taste God's breath
Because you'll never see the second coming
Life's too short to be focused on insanity
I've seen the ways of God
I'll take the devil any day
Hail Satan

(slayer, skeleton christ, 2006)

you have all been owned by T2

this post is OLD!!!!

muahahahahahahah

yea multimeter is what i meant to say. electricity and currents arent my thing

[quote=ßãggéÐÇåv98 (Ûñqùðtäߣè Øñé)]lol wow they really try and rape you at the dealer. if i remember right the one up front in the bay is the most expensive one and the one right after the cat is cheaper. best thing to do is get a volt meter and test the current going to the sensor. you can get meters from sears for like 20 bucks, thats where i picked mine up.

uh no.. it obviusly says HEATER-SENSOR 2.. its the sensor after the cat WHICH IS the expensive one. about 60-80.00 i got a new ac delco one on ebay for 30. changing it is quite easy just may want to pick up an o2 socket

well it seems hes raised the price a little. this is the same o2 sensor i bought same seller ect. You may want to ask him when u buy it if he can send you an AC delco sensor. I asked him and he sent me one hes a pretty big supplier of these sensors if not that one should work ok - heres a link
http://cgi.ebay.com/ebaymotors/O2-OXYGEN-SENSOR-CHEVROLET-CAVALIER-Z24-L4-2-3L-138cid_W0QQcmdZViewItemQQcategoryZ33557QQitemZ8020750728QQrdZ1QQsspagenameZWDVW