Passing Emissions

[David Cooley]

At 08:53 AM 8/16/1999 +0000, you wrote:
>I was re-reading the "too high NOx" post and wanted to start a thread
>on the subject of passing emissions.  The way my state works it, I
>had settled on the fact that I'll just have to be waivered (spend
>$150 to repair and it can fail and you can still drive). If I can
>pass thats great so I'll try. Here are the facts I've collected from
>readings:
>
>If your NOx is high:
>use more octane
>cooler air is better
>test in winter or spring.
>Disconnect Supercharger belts (if its the type that can be)
>
>So lets add some stuff. specifically what to do to ecm to help. on
>the buick list site there are links to "emissions" chips and there
>are also the stock chips available (bins). might be interesting to
>disesct them huh?


Retard your timing as well... Overly advanced timing leads to high NOx

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David Cooley N5XMT Internet: N5XMT at bellsouth.net
Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
We are Borg... Prepare to be assimilated!
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