Removing Cats: What To Do With Air Injection?
Ok, from a previous thread, where I posted I couldn't get past 65mph or 2600rpm driving, the consensus was my cat(s) were clogged. Took it to a local shop and the mechanic started my truck (2001 3/4 t 4x4 w V-10), and he immediately said, "man your cats clogged badly".
I crawled under my truck in the snow to verify my O2 sensors are in the downpipes coming out of the manifolds, and I have no post cat O2 sensors. He recommended losing both cats since we do not have emission testing here. I verified with the service manual I do have dual air injection tubing going to each cat. The big question: how do I handle this with removing the cats? Is the air injection something I can just close off? or do I need to do something special?
Input needed, would like to cut the gas hoggers off asap.
Thanks.
I crawled under my truck in the snow to verify my O2 sensors are in the downpipes coming out of the manifolds, and I have no post cat O2 sensors. He recommended losing both cats since we do not have emission testing here. I verified with the service manual I do have dual air injection tubing going to each cat. The big question: how do I handle this with removing the cats? Is the air injection something I can just close off? or do I need to do something special?
Input needed, would like to cut the gas hoggers off asap.
Thanks.




