Passing Emissions
CSH-HQ
nacelp at jvlnet.com
Mon Aug 16 14:59:30 GMT 1999
Fresh oil change.
Use a oil/air seperator on PCV line, to min oil bypasiing to intake.
Low Octane, faster burn, less timing.
hotter operating temp.
Heated o2
Fresh ignition parts.
Measure terminal distances for rotor, and rotor lenght, and use the combo
with min air gap
If in doubt phase rotor
SBC, restrict waterpump bypass hole on pass side of water pump.
Completely heat soak engine, with long drive.
Higher than normal idle.
ETC
Bruce
>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?
>~~~
>Dave Z. www.delanet.com/~tgp
>
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