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DSMCentral Freak ![]() ![]() ![]() ![]() Group: Members Posts: 256 Joined: 30-October 02 From: Chicago Member No.: 33 ![]() |
my mods are in sig, cat is on the car, and the dump is off the car. the car now has a s-afc and mkiv smic. my HC's hydrocarbons are sky high. the limit is like .80 gpm(grams per million) my cars reading is 7.80. the c0's are ok, but the HC's have caused me to fail the test some 6-7 times. what can i do to lower the hc's?? btw, hc's is unburnt gas, what are the causes of this? spark plugs are an obvious, but what else? please help!!
__________________ K&N Air Filter, 2.5"turboback PowerTone Exhaust, TestPipe, Turbo xs rfl bov, mbc@15psi, Upper Intercooler Pipe, Intake pipe, 02 Dump. |
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DSM Tech Wizard ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 ![]() |
Did you have your cat off for the test? If so, that is most likely your problem. Where do you live that you have to worry about emmisions testing? Chicago?
Rob -------------------- The fastest car I own is a minivan....
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Lo-Fi Version | Time is now: 14th October 2025 - 08:44 AM |