I talked to a real mechanic and he said the CAT was plugged. So I beat the **** out of it with a hammer. And it shot out a chunk the size of a tennis ball. Now it runs like a champ!!

 

i thought about removing my cat my friend said it will shoot a code because the sensors are unplugged and you can get it permanelty removed. do u know if thats right?

 

Cats are required by law, therefore no exhaust shop will remove it and not put one back in.
Most inspection shops will also check to see if a cat is present on the truck.
So you're better off either punching it out or replacing it with a hi-flow unit from Magnaflow.

 

what do you mean "So I beat the **** out of it with a hammer"?
i believe mines clogged but when i put my headers on i couldnt stick anything through the y-pipe to punch out the cat.
did you just beat on the outside of the cat?
did that piece travel through your exhaust pipe? im afraid a piece like that would get caught in my flomaster

 

Drop/cut the exhaust right behind the cat. Take out the pre-cat O2 sensor. Use a sharp pointy stick, and a BFH to break up the substrate in the cat, clear out what you can, then, start the engine and rap on it a couple times to clear the rest. Reassemble the exhaust.

 

Yes I hit the outside of the convertor with a hammer a few times. And gave it a few high revs and it shot the chunk out like a 90 mile an hour fast ball. But in youre case youre right it might get stuck in youre flows. I dont have any mufflers so it was a straight shot. So youre best bet is to cut it open gut it and weld it back together.

 

I am blessed to live in Kentucky and we dont have vehicle inspections here.

 

the code doesn't do anything really. It basically tells you "Hey, your cat doesn't work right, get a new one."

Precat O2 sensor: Reads AF ratio and sends to PCM
Post Cat O2 Sensor: Checks to see if the vehicle is within emissions standards.

 

i had a gutted and lost alot of low end torque but then i replaced it with a piece of pipe and it had alot more low end power and it alot louder

 

you created an area of high pressure that created a ton of back pressure.. back pressure= no good.. when the engine created enough pressure through the pipes to defeat the high pressure, you had decent flow..

the, uhem, correct way to fake a cat is to take it off and punch it out, and then shove a slightly smaller diameter pipe through it to give continuity of flow.. it basically makes the non-functioning converter body a huggy for your exhaust and functionless..