"hex" wrote: 98 civic EX manual 109K

Failed california smog test - high HC.

Did new plugs, dist cap and rotor, added 2 cans
of heet to 1/4 tank of gas and ran for 15 miles
on fwy prior to retest. HC was about 30 points
lower but still failed:

15 mph 25 mph
Actual(Max) Actual(Max)
CO2 13.7 13.8
O2 0.7 0.5
HC 99(64) 89(47)
CO .16(.55) .10(.54)
NO 33(477) 13(764)

No codes. Engine strong. Don't want to start
throwing parts dollars at it without knowing the
cause. Any insight appreciated.
________________________________________

Looks like it's still running too rich. If you do
decide to throw parts dollars at it, start with a
new air filter and plug wires.

Good luck.

Rodan.