1. Will O2 sims work on a 1993 Z/28?
2. How long for an install? (I have mac headers if that makes a difference.)
3. If my current O2 sensors were dirty and causeing the car to lose some power, the sims would fix it, right?

 

O2 sims are for oxygen sensors down stream of the cat, which you dont have on your 93.

 

You can't simulate the O2 sensors that are used to tune your fuel system. So no, and O2 simulator is not something to use on a '93.

Dave

 

Okay, thanks, I was hopeing that wasn't the case.