concerns about removing cat converter

joserivas19 · 03-12-2007, 07:24 PM

i took my cat converter off like 3 months ago, but i was wondering if that would hurt my car in any way? it sounds louder which is what i wanted, but people have been telling me that it'll screw up the computer since the "service engine" light is on all the time. is that true? what can i do to remove the light?

Gr1m · 03-12-2007, 07:26 PM

it has something to do with the o2 sensor if i remember correctly, it wont hurt your car but if you get caught with it like that you will be fined hefty, atleast in new york

joserivas19 · 03-12-2007, 07:29 PM

oh ok. thanks. i've heard that the high flow cat converters are good. is that true? i just want it to sound loud and clean. what can you recomend me?

DaRockwilder · 03-12-2007, 08:20 PM

Get a high-flow cat. Your car probably sounds like crap without it.

shiny alero · 03-12-2007, 08:34 PM

that sound is the sound of money going right to the courts if you get cought.

Gr1m · 03-12-2007, 09:34 PM

yep, i dont think i would ever take my cats off. for the price you will be fined if caught, you could buy a new alero lol

pimpalero2003 · 03-12-2007, 10:03 PM

just put a cat back on and have no resanator(cant spell) and a straight thru muffler or no muffler!

Redog · 03-12-2007, 10:21 PM

Yeah you're in big trouble if you get caught.

A car with no cat has a certain kinda of smell, at least I've been told. In fact the shop that did it could be fined too. Get a high flow cat put on ASAP. Do even think about getting a straight pipe with a cat shell, they can tell that too, they tap it and it sounds hollow, you're in trouble.

The O2 sensor will set a SES light with anything other that the orignal cat on it. You can get an O2 sim from www.pfyc.com which will tell your PCM that everything's OK. A car with an ses light on, will fail inspection in PA, and I'm pretty sure that in all 50 states a car will fail inspection without a cat on it

Gr1m · 03-12-2007, 10:50 PM

i just helped my friend take the cats off his Z and he told me that if he gets caught, they will fine him for around 250$ and then report you to like an environmentalist group who could then sue you for anything between $10-15k

Jferg2223 · 03-13-2007, 12:07 AM

Indiana doesnt have inspection

Satsuriku · 03-13-2007, 12:11 AM

dude your outta your mind for taking off the cat. if anything, just hit ebay up and get a magnaflow high flow cat, should only cost ya like $110......its a hell of alot cheaper then getting busted and the courts rip your wallet outta your ass going through your throat

Quote:

Originally Posted by Jferg2223

Indiana doesnt have inspection

and thats just effing retarded!

joserivas19 · 03-13-2007, 06:03 PM

oh ok. thanks for the input. i will try to buy one this paycheck and get it put on again. i did it in mexico. im from southwest AZ and the really dont care over there, but im getting transfered to WA and i might get in trouble if i get caught then. so a recap, get a high flow converter and a hollow muffler then? will duals straight from the cat be any good? my car sounds really good right now without it, but i dont wanna get in trouble.

HazMatt24 · 03-13-2007, 06:07 PM

my roommate just took his car through emissions with no cat and passed. They just looked for a fuel cap, hooked up the OBDII and since it didn't throw a code he passed

joserivas19 · 03-13-2007, 06:11 PM

what state is he in? cuz in heading up to WA and i dont know if they do emission checks or not over there, and i sure dont wanna get fined for not having it on.

HazMatt24 · 03-13-2007, 06:16 PM

Az Ftw

joserivas19 · 03-13-2007, 06:21 PM

can anyone get me the link for the O2 sensor from pfyc.com ive looked but with no luck. thanks.

clutch1 · 03-13-2007, 06:30 PM

WI doesn't have a check either! woohoo, they sound ludicrous in some areas (not passing for having after market lighting present, etc. :S).. but I'm sure there are a plethora of ways to get unlucky and have a cop figure out..

Like say they pull you over for loud exhaust and decided to look under the car.. no cat = uh oh.

Do what they all said, replace it with something better, but for sure put one on soon.

Gr1m · 03-13-2007, 07:22 PM

here ya go buddy
http://www.zzperformance.com/grand_p...=179&catid=107

Spilner521 · 03-13-2007, 08:25 PM

Quote:

Originally Posted by joserivas19

can anyone get me the link for the O2 sensor from pfyc.com ive looked but with no luck. thanks.

You don't need it. Get the Magnaflow high flow cat. They are OBD2 certified and will not throw a SES light, therefore you will not need the 02 sim. I know this because I have a Magnaflow cat and it has not ever thrown a SES light, and it's been on my car for over a year now.

jackal2000 · 03-13-2007, 08:32 PM

if there is no inspection then i wouldnt really worry about it. its throwing a code becase the downstream o2 isnt getting a reading. however, that has no effect on performance of the engine. the sole purpose of the downstream o2 is just to check to make sure the cat is working.