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Old 05-21-2012, 10:02 PM   #20
Draco-REX
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Quote:
Originally Posted by serialk11r View Post
Turbowned, you're quite mistaken about the primary cat, which I've seen you post 2 times now lol. That's the precat, the primary cat is downstream.
Quote:
Originally Posted by Turbowned View Post
Ugh, now I gotta dig through old threads to confirm... gimme 5 minutes!

Yep, you're right. Pre-cat. I think I read Draco-REX say it and I just regurgitated. You corrected him, too.
The second cat isn't monitored. The downstream O2 is located after the cat in the manifold and before the second cat further down.

Are you referring to a difference in construction? Because as far as the ECU is concerned, the cat in the manifold is the only cat on the car.
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