ZR-1 Net Registry Forums - View Single Post - Car failed smog,Im hating Ca a little each day!

Z51JEFF · 12-21-2011

Car failed NOX at 702 PPM when the max was 502 PPM.Cars a 1991 with 18,000 miles.Other than a Haibeck chip and a KnN filter car is stock.I know this isnt the Tech section but need as much advise as possible here,Thanks to all.

12-21-2011	#1
Z51JEFF Join Date: Dec 2007 Location: Fremont, CA Posts: 3,093	Car failed smog,Im hating Ca a little each day! Car failed NOX at 702 PPM when the max was 502 PPM.Cars a 1991 with 18,000 miles.Other than a Haibeck chip and a KnN filter car is stock.I know this isnt the Tech section but need as much advise as possible here,Thanks to all.