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Emissions Help Failed NOx
Posted: Thu Mar 31, 2005 5:04 pm
by cainsite
91 Legacy Non Turbo
Failed My Emissions Test High in NOx
at high speed (25 mph) Nox(ppm) 2407 - passing is 878
at low speed (15 mph) Nox (ppm) 2514 - passing is 970
I have a bad solenoid Purge control Valve, but it was bad last year when I got it tested and passed, do you think I have to replace it or is there a temporary work around, can I get one used, or do I need my cat looked at,
any help would be appreciated
thanks
Posted: Thu Mar 31, 2005 7:22 pm
by THAWA
wait a minute. They dyno tested your car? Where are you from?
Posted: Thu Mar 31, 2005 9:23 pm
by cainsite
Dallas, Texas
Posted: Thu Mar 31, 2005 9:51 pm
by Kelly
They put you on the rollers here too. Well, they put 2WD cars on the rollers. Id imagine his car is 2WD too.
Posted: Thu Mar 31, 2005 11:22 pm
by evolutionmovement
Yeah, they do that here in MA also. AWD cars just get the sniffer.
Is the car running hot? Lean?
Steve
Posted: Fri Apr 01, 2005 12:07 am
by THAWA
ah, I thought it said turbo
Posted: Fri Apr 01, 2005 5:20 am
by Legacy777
NOx is high heat, so I would check and make sure the proper plug is installed, also might not be a bad idea to try some seafoam to clean out the combustion chamber.
If that's still not working, I'd look at the catalytic converter.
Posted: Fri Apr 01, 2005 5:55 pm
by cainsite
proper plug ?
Proper Spark Plug?
What is the Proper Plug?
What is the ballpark cost for getting the Cat ltaken care of?
Posted: Sat Apr 02, 2005 1:51 am
by Legacy777
NGK BKR6E-11
Cost of the cats can be rather pricey. You could try and get a used setup, which should be cheap, under 100 bucks or so.
If you have to buy new....couple hundred dollars.
Another option is to replace the stock header with one from a newer 2.5 engine, and get a custom header back system with a generic catalytic converter. That would probably be cheaper.