Shoud I be ablet to tell when a new sensor is needed?
Can I use a Bosch universal one? I thought Bosch made an O2 specifically for our cars. It is probably a little more expensive though, should I just pay up for a better quality?

 

The more acurate aftermarket gagues use a 3 thingy pickup sensor. Definitly go electronic.

 

an o2 sensor is an o2 sensor is an o2 sensor.. .with that said, you can buy a universal sensor.. it's much cheaper.. it just doesn't end up having the proper connector.. splice in the new one or jsut the old one off and splice it on the new one..

I've tried a 3 wire system on my T2.. didn't like it.. switched back to a single wire sensor..