ok well i went in today.. ran my emissions test and failed. Guy sed i can bring it back tomorrow. Im so pissed..

parts failed only on Low emission results (15 mph)/(rpm 1496)
Standard | Current reading | Result

HC (PPM) 124 177 Fail

NOx (PPM) 937 1621 Fail


Heres a list of my mods:

WSP Y Pipe
WSP High Flow Cat.
JWT Intake

reasons why i might have failed
1. I did not drive my car arround for 30 minutes to let the cats warm up before they ran the test. And i suspect the car sat there for a good 15 minutes before they started it up.
2. One of my adapters is not plugged up when i switched my intake. My MAF is plugged in but theres another sensor that is not and is making me throw a code.


** I heard autozone sales some stuff that you put in your gas tank that will force you to pass emissions, is this true? **


thanks for reading this guys.

 

This thread is pretty good:

http://forums.maxima.org/showthread....hlight=NOx+PPM

Basically clean your EGR valve, and maybe replace your cat.