wcryan

iTrader: (2)

scanner says catalyst system efficiency below threshold Bank 2

I'm guessing my cat is going out?

This is my second one within 10k miles. Not the same one but my drivers side cat went out and now this one. Thank god for GMPP.

Could my cutouts be making these things go bad? My car only has 37k on it. The cutouts are right after the cat's.

BudRacing

iTrader: (3)

Unburnt fuel is usually what makes them go bad prematurely. Any reason you might be running rich?

wcryan

iTrader: (2)

hmmmm.... I dunno. Only thing I have on this car is CAI, cutouts, muffler delete. No tune or anything. waiting for my cam and heads before I do that

punishmentcycle

iTrader: (6)

if anything youd be lean with the cai and cutouts..id just wait till u get the cam and tune and have them turn the rear 02's off

wcryan

iTrader: (2)

are cat's worth anything? Cause if I get a new one and the other one has like 4-5k on it im gonna get rid of them because my obx headers came with those fake cat's

RADEoN

iTrader: (12)

You might get something on ebay. I know scrap guys like them too since they have platinum in them.

It could be a bad reading from the o2 sensor, also.

BudRacing

iTrader: (3)

You'd probably make more money selling it as a bolt in piece for replacements.

SoCA04V

One other thing is be careful with these heavy mods and your GMPP. Depending on the dealer, they won't cover basic things if the car is heavily modded.

wcryan

iTrader: (2)

personal experience?

SoCA04V

Ya, the dealership initially denied my warranty claims because of modifications. I had to fight with them to get things covered unrelated to the mods that were done.

wcryan

iTrader: (2)

were they always straight up ********? or pretty easy to deal with........ My guys are pretty easy to deal with, so im hoping that's ok

jester81783

i got this code on my evo after installing a turbo back exhaust with a high flow cat. the fix was to add a spacer to where the o2 sensor threads in. I used this how to,

http://forums.evolutionm.net/evo-how...ouler-how.html

It might work for you. Once I had the spacer in, the code never came back. It keeps the o2 sensor cleaner

guitar333

Swap your 02 sensors maybe... See if the problem is still on the same bank..

wcryan

iTrader: (2)

if it is an O2 sensor, will the GMPP cover it?

Skidmarcx

got the same code... cat is toast from running rich for too long... good excuse to buy headers

SoCA04V

I was dealing with Cadillac in Escondido, they were difficult to say the least.

Ekshail

Does anyone know if the little hand held tuner OBDII (Can't remember the name right now) can tune out the O2s?

wcryan

iTrader: (2)

Yeah, They are sitting at my installers shop

That's funny...... That's who I use, and the guy that I go to everytime seems to just cover anything. I've never had a problem there, wierd

RADEoN

iTrader: (12)

Wcryan, the o2 sensor should absolutely be covered by gmpp.

wcryan

iTrader: (2)

Thank you sir, i'll go see what they have to say