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emissions test failure.....
Posted by kooch (more from kooch) on Mon, 27 Jun 2005 17:43:45
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ok, failed emissions today. readings were...
HC - 4.18, limit 2.00 - failed during the cruise portion
CO - 34.61, limit 30.00 - failed during the drive portion
NOx - 2.94, limit 3.00 - pass
so, i already knew i was a little rich in the fuel map. since this is a programmable ecu, i can plug in the laptop and adjust the fueling. my guess is by reducing the fueling to get around 14.7:1 or so for cruise conditions will get me the ok on HC.
question is, will this also reduce CO? i have plugs that are a little old now and plan to swap them out. is there a trade off between the different emissions? meaning if i reduce one will the other rise?
any thoughts?
thanks.
posted by 24.60.15...
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