Failed Smog! Help
Thread Starter
Honda-Tech Member
iTrader: (2)
Joined: Aug 2005
Posts: 1,241
Likes: 0
From: BackYard Mechanic, usa
HC was 130 allowed is 100... ignition problem? suggestions?
i remember i had to retard the timing last time i got it smogged... thanks
i remember i had to retard the timing last time i got it smogged... thanks
HC is partially burned fuel usually indicative of a poor ignition system or retarded timing. On a Honda sometimes it can be caused by your valves being out of adjustment.
Elevated hydrocarbon (HC) emissions usually indicate ignition misfire due to fouled spark plugs or a bad plug. But high HC emissions can also be caused by burned exhaust valves (check compression), lean misfire (check for vacuum leaks, low fuel pressure or dirty injectors), or rich fuel conditions (fuel saturated carburetor floats, excessive fuel pressure, leaky injectors or a dead O2 sensor). -- Larry Carley, Automotive writer
See also:
http://www.20v.org/emissions.htm
http://www.aircare.ca/index.ph...y.php Go to HC definition.
See also:
http://www.20v.org/emissions.htm
http://www.aircare.ca/index.ph...y.php Go to HC definition.
IF SUPER HEATING YOUR CAT DON'T WORK YOU CAN CHECK YOUR PLUGS AIR FILTER CHECK YOUR OIL FOR FUEL SATURATION OR YOU CAN JUST DROP A NEW CAT AND CALL IT A DAY...YOU CAN ONLY RETARD + OR - 2 DEGREES MAX ON HONDAS...UNLESS THE TECH DON'T CHECK THEN YOUR IN THE CLEAR...
Thread
Thread Starter
Forum
Replies
Last Post
brdude
Honda Civic / Del Sol (1992 - 2000)
18
Jun 29, 2013 06:50 AM
chill00
Honda Civic / Del Sol (1992 - 2000)
2
May 25, 2004 07:36 AM




