my nox are hella high i think there suppoust 2 be max 800 and there like 2500 and up....so i wanna know what i can do 2 drop that dowm because i have to smog the car...thanx guys

 

anything?

 

Did you try the basics like changing your air filter, spark plugs? You could have a bad cat too. If your 91 still has the stock cat thats more than likely the issue.

 

yeah true but, all my other emissions passed exept nox, if my cat was bad wouldn't it fail everythingthing else?

 

My cousin's stock *** '91 Integra RS failed NOX so we pulled the cat and it was completely destroyed inside (not gutted, just old), changed it and it passed with flying colors. Smog tech should have told you to change the cat...

 

oh ok well i'll check it out then....cuz i bough the car like this...i'll check out the cat this weekend..thanx