i have a new Cat on there ..... passing everything else but the NOX over by .12 points.... any idea how i can pass !! ??
thanks in advance

 

Make sure the cat is really hot. Check to see if you're running too lean. And check your timing.

 

Here is some good advice from g2ic.

http://g2ic.com/forums/showthr...+test

I would try the cheap stuff (recommended by xdeep on g2ic) first.

I changed my spark plugs (gapped correctly), oil/filter and air filter.

Then add three bottles of "Heet" gas line antifreeze to a quarter tank of premium gas.

Make sure car is fully heated up before test.

I noticed a huge drop in all levels and passed easily.

 

are you running high compression pistons or something?

NOx only rises when the heat in the combustion chamber is too high

try changing your plugs and running higher octane gas to lower the combustion chamber temp's

 

dose your integra have a EGR? some of those years have it.
if it dose make sure it works
new oxygen sensor!

 

i had the same problem with my G2, NOX was way to high, i found that my timing was off a bit and found that when it was brought back to sepc all was ok

 

same problem