[Shotimes] High NOx during emission test

[Paul Nimz]

A 10-20% dose of denatured ethyl alcohol in the tank when doing the test.
This may upset the HC readings but you have wiggle room for that.

Paul

On 3/5/2006 9:22:37 AM, krazgeo@comcast.net wrote:
> -------------- Original message ----------------------
> From: "SVTSHO (Bill Byrer)" <svtsho@worldnet.att.net>
>
> > Since I now have a year to correct whatever the problem might be, I am
> looking
> > for suggestions, thoughts, or comments.
> >
>
> EGR is the primary agent to reduce NOX output.  That system needs to be
> working properly.  If you don't have EGR, then the cats are all you have.
If they are original, they are getting tired.  If they are newer, then you
might have to pull the 10 degree plug up in the right front corner of the
firewall in order to keep the timing from advancing during the test.  The car
runs terrible, but it will pass the NOX test.
>
> George
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