jph2275

Hey guys,

I recently had my car tuned with HPtuners and a HSW nitrous kit put on. I had to tap into the first 02 sensor before the cat to get it to work, and now the rear 02 sensor is acting funny. The codes I get are

P0420 - Catalyst system efficiency below threshold (bank 1)
P0410 - Secondary air injection system malfunction

My mechanic friend says its b/c i beat it like a red headed stepchild, and all the extra nitrous and fuel that goes into my cats is clogging the cats up...

I have nick @ HSW looking over this.. but also wanted to know if anyone had any advice/suggestions about this stuff. I was forever plagued with P0420 when i had put headers on my 5.7 HEMI, now im having this trouble with the camaro! It never ends!!!

Thanks a million everyone!
Pat

jph2275

btw

I just took it to oreilys auto parts to have the codes cleared off and on the way home the codes IMMEDIATELY came back on... what gives with that?

01ssreda4

iTrader: (96)

perhaps it would like to be a heads and cam car instead....

jph2275

Haha... maybe... but for now I got to make this work....

any advice? anyone?

RsSean

iTrader: (27)

Remove cats have codes deleted.
Secondary air injection?

cody161

iTrader: (18)

im with RsSean, the cats and AIR system belong in the trash can. does texas have emissions?

02 BLK WS6

iTrader: (11)

Cats don't like nitrous. It burns them up quick.

sadegna

iTrader: (4)

take the cats out