good point but i knew i was screwed because i went throught the car breaking in smell and than it came back 10 thousand miles later. Thats no good. He listen every body just cause you have a smell don't everybody run right back to the dealer. Most dealers won't change off a defective part with out hard prook or a cel.Mine was fucked up for at least a month before a cell for it finally came on. Than my car got slow as ***** and all that other good stuff.

 

yeah man that happend to me than the dealer tryed to give me hell about replacing it but they did i was boosting 20psi but i did not go any were than the flex pipe at the top of my downpipe blew up and the car sound like ass arg but im just gonna gut my cat cuz my new one will more than likley do it again!!A i known a kid with a redline he had the same problem!

 

Yeah guys looks like my new cat is showing symtoms of going on its way out again.........great.

 

FYI, converters are Federal EPA mandated to be warrantied for 100K miles now, just bumped up from 80K.

 

Well thats good to know. It seems when ever i take the car all the way through 4th gear or stay at a high speed for a good amount of time the cat takes a beating. Shouldn't be that way though.

 

You should look for an aftermarket high flow cat. I was reading a article in a tuner magazine and in Japan they have cats that are used on race and drift cars. Rather than bend the rules to get out of emissions, they are improving the technology. They have an R34 Skyline drift car pushing over 600hp and releasing absolutly zero emissions. It cost 2K for the cat, but think of the power possibilities and it helps the enviroment.

 

Not at all, IMO. I can say I have replaced many Cats on other Chevy cars 3.4L and 3.8L, because they would plug-up. No misfires, no running too rich, no reason at all. Install a new one and the would be fine. Oh, BTW, if you ever get a "BLINKING" CEL, this means a misfire is occuring that will damage the converter and you should stop driving.

 

Keep in mind that at WOT it is going to stink a bit since so much fuel is being dumped into the engine.

Get behind someone on the freeway when they pass, you will be able to smell when they go WOT.

When a cat. converter is going bad you will loose power it may not even stink at all too.

Most converters stink due to a overly rich condition, which will eventually kill the cat.

 

I just had my exhuats replaced after I heard it rattling. They said some welds broke and replaced it under warranty, and ive tested my ss/sc every chance I get.

 

I will say hammering those cars the way everyone is will cause some smell ...i too have an eaton car w/no cats and in cold weather i am seeing a solid 15.5llbs boost ..for me thats a 2whole pounds and thats pretty normal w/that kind of wheather we have!!! YOU WILL KNOW IF YOU HAVE A BAD CAT!!!!! it will choke the car ...it will be slow ..it will smell ....cat will glow red

 

I just hope that everyone reading this that has seen an increased boost level realizes that there may be no problem at all...... Remember it's winter. Cold air is denser and will give you a higher boost.

Tom

 

yeah but hitting 15psi on stock pully cold air aint doing that all by itself thats just a hint that the cat is backing up and causing an over boost. Anyway when it started happening to me it was stil 60's during the day and 50's at night.

 

Thats terrible Why don't you just take the CAT off? or would that cause problems?

 

You know you guys talking about overboosting and stuff i just got my 2006 SS and i have been right around 15psi since i bought it .. only had 1 mile on the car when i bought it, i sure hope that the cat didnt clog that fast, to this point i have like 750 miles on the car with no wierd smells or anything yet and boosting bout 15psi. Is it just the cold weather or do you think its the cat problem?

 

Probably OK likr that, but I think there is a possibility that the 2006 SS doesn't have the by-pass selenoid bleeding the boost @ 12 PSI.

 

COLD AIR =DENSER CHARGE =MORE BOOST not uncommon to see 1-2 pounds more in cold air Low humidity...wait till summer when all you see 12 for a second and bleed down to 10psi

 

yeah thats how it is here in cali its too warm here to boost higher than 12

 

You are incorrect

Colder Air = Denser Charge = Same Boost = More Oxygen

 

No... See Post #43

 

yup yup you are correct sir.

 

i never get more than 12 lbs out of mine with 2100 miles on it. the supercharger itself sure is raspy though. also the exhaust ticks like a bomb after a good run, probably killing my cat too .

 

Do you feel it's going to break for real or do you think it's all in you head?

 

With all this bad cat and all the backup and ticking, saying how it can damage an exhaust... Would getting an aftermarket cat/exhaust solve the problem, or is it not even the cat that causes the problem. Forgive me if this has been asked already, I'm new to the forum and only skimmed previous responses.

 

It's not really a "Problem"

It's normal, The Cat was designed for a particular Flow. You increase the Boost, you get more volume. The volume is beyond the normal capacity, it will back up and overheat and start to fail.

A high FLow cat would help if you were overbosting to a point.

 

Well guys Second cat died on me offically tonight. Hope my dealership is prepared to chage it again. This one died alot quicker than the first one but i guess the added heat from me running so lean might have something to do with it.