[KingLT1]

Originally Posted by Vettethret

There are no secondary cats, this system removes them. I will take it back to the shop and have them adjust to make sure there are no leaks.

It doesn't matter if you have them or not. There is still a connection point there with or without out them and the post cat o2's are picking up the leak.

[Vettethret]

Originally Posted by KingLT1

It doesn't matter if you have them or not. There is still a connection point there with or without out them and the post cat o2's are picking up the leak.

Crisis averted. It was a loose O2 sensor. Thank you gents.

[Vettethret]

Originally Posted by Vettethret

Crisis averted. It was a loose O2 sensor. Thank you gents.

We'll, 1st issue I have ever had with a cat back. Took it back, an 02 sensor was loose. They tightened it, the code was gone from the vehicle as soon as I turned the ignition, 30 miles later, code is back and the same. Something is still loose or they damaged a o2 sensor. Unreal!