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Date:         Mon, 12 Apr 2004 05:51:56 -0700
Reply-To:     tomdurkin <tjdurkin@TELEPORT.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         tomdurkin <tjdurkin@TELEPORT.COM>
Subject:      Re: '88 Failed Smog check
Comments: To: Todd Last <Rubatoguy@MINDSPRING.COM>
Content-Type: text/plain; charset="iso-8859-1"

NOX is caused by high combustion temperatures. Advanced timing, too lean mixture, bad EGR perfprmance, bad cat all lead to it. Tom ----- Original Message ----- From: "Todd Last" <Rubatoguy@MINDSPRING.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: Monday, April 12, 2004 12:35 AM Subject: '88 Failed Smog check

> Hello, > > I have a 1988 Vanagon with 168,000 miles that failed the Oregon Smog check. > I'm looking for suggestions as to what might need to be done to get it > into compliance. > > The measure that was off was NOx emissions (max 4.62 /mi - Measured > 8.88 g/mi) > > I did have the "performance chip" installed in my ECU at the time, and > have since replaced it with the stock chip. > Any other suggestions as to what I might check before I take a second > try at it? > > thanks > > Todd > '88 WEsty


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