it's a bit costy.. should i replace it ?
Scanners are showing that my oxygen sensor in my 1992 golf vr6 needs changing i want to know if it' worth it ?
change it you cheap ***
Scanners are showing that my oxygen sensor in my 1992 golf vr6 needs changing i want to know if it' worth it ?
Define costly.
It drifts rich, so you should have been getting somewhat worse fuel mileage. Now that it's in the error state, I suppose you've gone open-loop all the time. That might actually be an improvement. Do you know what your gas mileage was 5 years ago? 10 years ago? In order to put a value on this, you'd kind of need that to compare your current fuel mileage.
You might want to make a guess. If it improved 5% or 10%, would it be worth it or not.
it def will give you better gas mileage..in a car like that you could see a couple more mpg on each one that you replace..there is only 1 cat on that so you could see up to like 6mpg added for replacing both of them...they can get costly but it is well worth it
If you plan on keeping the car change it. You may even find a universal one that you can use to replace it. Your gas mileage is going to drop and your computer is going to read that your air/fuel ratio is incorrect. You wont damage anything by driving it with a bad o2 sensor but it would be better to change it. Plus if you have to take a vehicle inspection test you will fail it.
The first thing I'd suggest is you buy a service manual for the car. They're made by Haynes or Clymer. Buy them both. They will enable you to do a lot of the work on the car yourself, thereby saving you a TON of money!
The car's 16 years old, Eddy and it's going to need things replaced on a regular basis. If you have to pay a mechanic to do most of the work, unless you're made of money, you'd be better off getting rid of the car right now, IMO.
With the manuals, and an internet forum of other Golf owners, you can replace the O2 sensor yourself in a couple hours one afternoon.
Never done this type of work/wrenching? No problem. You learn by doing. It will provide you with a lot of satisfaction AND get to know your car, AND know things are done right.
A worn out O2 sensor is causing your extra money in gas because your mileage isn't as good as it could be. So, you'll be buying an O2 sensor whether you get one or not. You can buy the sensor and replace it, or you can pay for it at the pump with reduced mileage.
Depending where you live, it can cause the car to fail the emission test.
If it's the Bank 1 or Bank 2 switch number 1 it needs to be replaced or the motor will run lean and damage will result.
If it's the switch number 2 you won't get damage to the motor. Switch 2 is only for monitoring the cat converter to make sure it is working. Remember that even though a bad switch 2 won't effect motor performance, you won't pass an emission test if you have them in your location.
Advance auto stores sell OEM Bosch O2 sensors for under $100. Make sure it is an exact match by comparing the connectors.
22mm is the wrench size for the O2 sensors, if you don't have the special socket for removing the O2 sensor you can cut the wire off and use a 22 deep socket, hopefully you can use an adjustable wrench for installation only. I'd have the car warmed up,it's your best chance for getting the old sensor out without stripping the manifold.
Bank 1 is the cylinder head with the #1 spark plug wire. Bank 2 is the cylinder head with the #2 plug wire.
