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Subject:Re: The Dreaded Emissions test
From:Chris S
Date:Fri, 10 Jun 2011 15:36:00 -0400

Idle is a bit high as well so I would try to check for vacuum leaks and/or improperly closing throttle flap. Then I would adjust the idle and idle mixture to spec. 

Ken Wilford had an excellent write up on troubleshooting idle issues that would come in handy. I don't have a link, so Google may be the way. 

Chris.

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Dnia Jun 10, 2011 o godz. 14:42 Ken Wyatt <57skibum@GMAIL.COM> napisał(a):

> Howdy vanagonauts,  I'm having trouble getting my 1982 westy to pass
> Utah emissions.  Scary thing is that it has a new (3000 miles)
> aircooled 2.0 l FI engine.  I thought it would be no problem to pass.
> But NOT!!  I'm failing on the idle HC and CO.
> 
> Last Friday for the first try, the mechanic tested the engine cold and
> got HC at 469 (passing is 220 or less), and 2.83 on CO (passing is
> 1.2% or less)  The higher 2500 RPM test resulted in HC 203 and CO at
> 0.979 % which was passing just barely passing there.
> 
> I figured that it was just the cold engine.  So today I drove it until
> it was completely at operating temp quick thoughts on where to start
> or what to check?  The engine sounds perfectly VW to me.  The idle is
> running about 1100 and I'm wondering if that's slightly high.
> 
> It sure would be nice to go camping but no registration..............  No fun!!
> Ken Wyatt
> 82 westy