Ok Just installed my ZZP Downpipe everything was fine for about a day the next day my check engine light came on do i need a tune or is there something else wrong??

 

Get the code read, it's probably just the p0420 code which is a cat deficiency code. Nothing wrong, just says that the cats are "malfunctioning" or if you have catless just aren't there. You can either ignore it, get a vibrant 02 defouler and try that (which worked for me) or get tuned and have the code disabled, it's not hurting anything.

 

Does it have a cat?

Edit** Tommy best me to it. I would say that's your problem though.

 

Oh ok and yea its catted Downpipe

 

catted downpipes can still throw that code, it's not necessarily a guarantee it won't just because it has a cat, it just means you should be able to pass emissions.

 

Oh ok thanks i dont really know anything about this but is it good to drive around or should i first get the check engine light code removed

 

Iv got a zzp downpipe also and my light came on for like 4 days and then just went away. So it may also just go away as well but sure that is the code ur getting and if it is ignore it or have ut cleared

 

You'll be ok. I would go to autozone and get the code read just to make sure it's this one, but if it is, it won't hurt anything, you'll just have the annoying light on.

 

ok cool thanks

 

if you want, you can also change your oxygen sensor. 2nd one. sometimes, not always, clears the code.

 

you need to do the spark plug non fouler trick.

 

so it will pass emissions with no cat if the code is tuned out?

 

Depending on how strict your testing place is. Some places just look for cels. Some actually test the exhaust gasses.

 

Get it tune out or try the defouler.
The problem with just leaving the light is you wont know if something else pops up until it is too late.

 

what he said. your best bet is to get a tune. this will do a few things for ya.

- get it tuned so you can frsure pass emissions
get the cel off
experience the full benefits of running a les restrictive dp (just putting them on doesn't give you all the power, tuning for it does)
it will make it so that (hopefully) your not running rich or lean

and since tunes can run anywhere between 2-500 bucks, it wouldnt hurt to put on another part or two before hand if you plan on putting more on, like an intake or something.