because ive seen ones that say 4 wire, direct fit, and they look different too. thanks guys!!!!!!!
I have a 1999 chevy cavalier with a bad oxygen sensor. How hard is it to change and which one do i get.......
For one how do you know its bad? Have you run a systems Diagnostic ? you seen the wave form being bad under certain test procedures? Dont just assume its bad because the light is on.
You will need to get the correct O2 sensor per your vehicle, YES they do make a variety of installable sensors but get the right one for your vehicle and for the most part since your car is a 99 its OBD II governed and you will need the 4 wire Sensor, YES you can do it yourself but that vehicle has i think 2 sensors - hence you will need to figure out which one is bad IF it even is bad.
Best advise i can give you at this time without knowing what is going on with your vehicle.
Good Luck
I have a 1999 chevy cavalier with a bad oxygen sensor. How hard is it to change and which one do i get.......
you need an o2 socket it looks like a regular socket with one side cut out and you change it just like a spark plug. go to an auto parts store tell them what car you have and Eng and they will give you the right part.
first off...how do you know it's the oxygen sensor? If it is...then get the VIN # and go to the parts store and they can get you the right one.
One thing I have done is remove the old one and clean it with carb cleaner...this does work.
Get a diagonstic tester, plug it up underneath the dash of your car, it will tell you which O2 sensor is bad. The front one or the back one. Get sensor by-( Wells Co. Products) at Auto Zone.They will tell you which one you need. My husbands works there.
get the code from your computer..that will tell you which one...there should be one right in the front of the engine..
to the ATS light..is it just the ats light..or is the dash lighting up..these lights coming on are early signs of a wheel bearing problem on a GM..If the ABS light it could cause you a problem in a dangerous situation since that means the ABS is not working and the brakes will lock up..so yes it is important to look into!!!!!
this car has two o2 sensors, really not that hard to replace. one is located before the cat converter and one behind the converter. should be able to get at both with a 7/8ths wrench. you may need to cut the wires on the old sensors and use the box end of the wrench.
Oxygen sensors look like spark plugs and screw into the exhaust manifold and/or exhaust headpipe.They should be changed at least every 60,000 miles.They carbon up and go %26quot;blind%26quot; (failing to sense oxygen levels in the exhaust) over time.This will cause poor air/fuel ratios and poor performance as well as hurting gas mileage and possibly even overheating the catalytic converter.The old 1-wire GM sensors run around $30,but multi wire Heated sensors can cost up to $200.I would stick with a name brand like AC Delco,Denso,or Bosch and also buy one of those sensor sockets that look like a regular socket with a slice down the side (for the wires to exit),they are pretty cheap especially if you can find one in the %26quot;Performance Tool%26quot; brand (aka Chinese made).
some of these are NOT cheap when you get into 4 or 6 wire configs they can be expensive. also do not spray cleaners on it it will ruin it if it is not the bad one.
