1986 Oldsmobile 98 issues passing smog

1986 OLDSMOBILE 98
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KAAZZAMM85
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1986 Oldsmobile 98 Automatic

I am trying to pass smog for the state of California with a car I bought in Nevada. The only part i keep failing is the NOx portion. I'm failing by twice the amount they allow. I just recenetly replaced my EGR valve, and it is still not passing smog. Is there anything else I can look into to fix this? I pass everything else with flying colors.
Jul 22, 2010 at 2:52 PM
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RASMATAZ
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Could be the catalytic converter or the coolant temperature sensor locked-up in the open loop mode
Jul 22, 2010 at 4:37 PM
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