Is there a way to bypass the O2 sensor? Do I even need it if I'm installing a Webber?

You don't need it at all if you have a carb.

 

Espescially not a weber.

That's what I figured, but if I don't hook it up won't my ECS light stay on?

Gloyale, or anyone else reading this. Could you explain why you don't need the O2 sensor if you have a weber?  I'm a mechanical noob and trying to learn.

Remove the computer and throw it away.

 

You have a weird model that used a computer and some solenoids to alter the mixture by increasing  or decreasing the amount of air allowed to mix with the fuel.

 

Most of these systems don't work anymore.......and the Car will still run with the ECU unplugged.

 

And then If you install a weber.......you will be removeing all the stuff that the ECU controlled anyhow.  Ditch it all.

 

The on;y wire that the weber needs is 12v "key on" power to the electric choke.

http://www.ultimatesubaru.org/forum/topic/86889-whats-up-with-the-bad-mileage/?hl=%20fuel%20%20mixture%20%20meter     This is the only reason for an O2 sensor with a weber.

Ok cool. Thanks. Wow, ditch the whole computer. Makes sense. Once theemissions are gone I can't think of anything it would be controlling.