Re: [DMCForum] Re: Setting HC / CO with a Gas Analyzer?

[Martin Gutkowski <martin@xxxxxxxxxxxxxx>]

...because the fuelling curve on the metering head will be wrong. Can't 
remember whether it shallows it or steepens it but it will only be right 
at idle if you do this.

Martin

content22207 wrote:

> Why don't you simply unplug the frequency valve, then set CO wherever
> is best for performance (European spec is 1.5% or 2%, as I recall).
>
> Can easily plug the silly thing back in when it's time to get tested
> again.
>
> 900 RPM is overall Volvo idle speed spec, BTW (F series).
>
> Take pics tomorrow...
>
> Bill Robertson
> #5939

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