Regular Smog Check
STAR Smog Station
Smog Check Repair
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Smog Check & Emissions Questions and Answers
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High HC
Question
Answered
2001 Honda Accord 2.3L failed for high HC Hydrocarbons
by
tomy
Yes (1)
1994 Toyota Pickup 2.4 liter failed for high NOx.
by
Cliff
Yes (1)
1995 Ford Ranger 3.0 Excessive EGR Flow
by
greg
Yes (1)
2002 Toyota Corolla - Is there a difference between a California CAT and a Federal CAT?
by
John
Yes (1)
1997 Jeep Wrangler Sport 4.0 failed smog for high HC
by
Bruce
Yes (1)
1996 Nissan Pickup Truck failed for high HC.
by
steve
Yes (1)
1995 Nissan Sentra failed smog check for high HC. What could be the problem?
by
Jaime
Yes (1)
1993 Toyota Pickup failed smog check due to incorrect ignition timing.
by
Kathy
Yes (1)
1992 Mazda Navajo 4.0 L 6 cyl. Auto trans. Inquiry on different RPMs for 15 mph on smog check retest.
by
Roger
Yes (1)
My 1993 Mercury Sable has high HC at idle. Why?
by
Russel
Yes (1)
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