Hello and thanks for all the responses. Here are all of the Emmission Test
Result numbers from my failing test report:

= = = = = = = = = = = = = = =

Line 1:

Test=15mph
RPM=1727
%CO2 meas=15.6
%02 meas=0.0
HC (PPM) MAX=92, AVE=21, MEAS=13
CO (%) MAX=0.55, AVE=0.06, MEAS=0.03
NO (PPM) MAX=716, AVE=150, MEAS=991
FAIL
= = = = = = = = = = = = = = =

Line 2:

RPM=1904
%CO2 meas=15.5
%02 meas=0.0
HC (PPM) MAX=57, AVE=13, MEAS=11
CO (%) MAX=0.54, AVE=0.05, MEAS=0.02
NO (PPM) MAX=764, AVE=136, MEAS=354
PASS
= = = = = = = = = = = = = = =

-DK


"DavidK" > wrote in message
. com...
> After having passed the California smog check for 2 tests (4 years) in a
> row, my stock '94 Del Sol ("S" model with 1.5L engine) failed today. :-(
> It's the first time I've ever had any car fail the Smog Check, in 20 years
> of living in California.
>
> I have never made any modifications to the engine, and I take it in for
> regular maintenance according to the maintenance schedule. It has been
> about 6500 miles since its last oil change, and I don't use any pour-in
fuel
> additives. It is running normally with no noticeable engine problems.
>
> Here in California the DMV has recently made the Smog Check test more
> sophisticated, using a 'dynamometer' (treadmill) to test the car under
load.
> They test the car at a simulated 15mph and at 25mph. They also added a
NOX
> (nitrous oxide) emissions check, and that's the one that my car failed,
but
> only at 15mph.
>
> As for my other emissions test results, my Del Sol had extremely low CO2,
> O2, HC and CO emissions at both 15mph and 25mph, but failed the Nitrous
> Oxide (NOX) test at 15mph. In fact, the NOX emission was about 3 times
> higher at 15mph than at 25mph, which seems counter-intuitive. I had
driven
> the car at least 15 miles before arriving at the test facility, so it was
> well warmed-up.
>
> Has anyone else seen this kind of failure with an older Honda Civic or Del
> Sol? If so, what was the culprit? I'm trying to get an idea how much
it's
> going to cost to have it fixed.
>
> Thanks for any ideas, feedback, or sympathy. :-)
>
> -DK
>