EGR and Smog Legal

[Wayne Cox]

At 01:41 PM 12/8/2002 -0600, you wrote:
>The reason that Wayne saw no increase in his emissions with his EGR
>disconnected is that the EGR system is in place to reduce:  "Nitrogen
>oxides, or NOx,

Ahh, that makes some sense.  However, the test was Ohio's "quick pass" - if
nothing is grossly close to the limit on the first run, they pass you and
the paperwork only lists a few key items.  If you fail the first time, they
make one or more gradual pulls on the dyno and list more items, to see if
you scrape by, or to help guide the repair person.  I'm pretty sure they're
testing NOx, it just isn't shown in my report.

I'd still like to see a detailed emissions analysis on two higher mileage
otherwise identical engines, one with EGR damage and one without.

    -Wayne    '91 NX2k - '93 NK2k - '92 SE-R parts car