Tuning for smog test
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Tuning for smog test hey guys... my car failed the sniffer test and was wondering if anyone has an emmisions tune kickin around? maybe you Cali guys can chime in?thanks
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ok well here we do a driving test on a dyno for 3.2 km's similiatng normal everyday commuting,.
max allowable for HC is 0.3700 g/km and i got 0.9794. max NOx is 0.9300 and i got 1.1843 g/km
i passed the CO portion of the test. just failed in HC and NOx
max allowable for HC is 0.3700 g/km and i got 0.9794. max NOx is 0.9300 and i got 1.1843 g/km
i passed the CO portion of the test. just failed in HC and NOx
Well, if it failed for both of those I'd look at the cats. The reactions in our converters include two oxidizing reactions to move unburnt HC to water and carbon dioxide, and another to lower nitrogen oxides through partial conversion to nitrogen and oxygen.
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The two I mentioned are what you failed for...
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I took out the egr and tuned it out..
i have the tsp catted y with prolly just a few thousand miles on em.
i dont think the cat is faulty.. maybe my 02 sensors are garbage and need changin..
i have the tsp catted y with prolly just a few thousand miles on em.
i dont think the cat is faulty.. maybe my 02 sensors are garbage and need changin..
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I failed all tests and found out it was the cats.
High flow cats have a hard time cleaning up the exhaust.
Switched to stock Ypipe and my car was cleaner than my Altima. 0 on everything NO was 17
High flow cats have a hard time cleaning up the exhaust.
Switched to stock Ypipe and my car was cleaner than my Altima. 0 on everything NO was 17
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