failed emissions

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conjay187
Posts: 19
Joined: Mon Apr 26, 2010 3:35 pm
Car: 1990 240sx

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I have failed emissions 2x now!! my NOx is over doubled what it should be. any ideas what to do? PLEASE HELP...!!!!!

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AHall
Posts: 110
Joined: Fri Sep 27, 2002 3:53 am
Car: 1993 Nissan 240sx

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Is NOX the only thing that failed? Is your EGR valve functioning?
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conjay187
Posts: 19
Joined: Mon Apr 26, 2010 3:35 pm
Car: 1990 240sx

Post

NOX is the only thing that failed and EGR valve is working
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AHall
Posts: 110
Joined: Fri Sep 27, 2002 3:53 am
Car: 1993 Nissan 240sx

Post

how old is the catalytic converter? Do a search on postings by my name. I did a long write up on what I did to pass emissions. Good luck, emissions can be a real pain here in Texas. So I feel your pain.
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