Post by
moso »
https://forums.nicoclub.com/moso-u137641.html
Sat Oct 02, 2010 2:19 pm
you can do alot to make your car pass emiss without an egr valve, but if they do a visual inspection your going to fail without one. as far as lowering your nox, warm the car up well like on the freeway, use low octaine -no ethenol gas, clean the maf, check the timing and maybe retard it a bit. if you have an aftermarket fpr you can raise the pressure a bit to try to richen up the mix. you may want to try a fuel system cleaner too. o and check that o2 sensor.