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    Posted by Peter Wright on May 15, 2004, 8:54 am, in reply to "Re: Astra 1.8 16v 1994/5 Emissions Update"

    Andrew, if you have a hole in the rear silencer and you are measuring downstream of the leak, you may not be able to believe the readings you are getting. Do you have the ability to read COcorr??

    If its the same as CO, then believe your readings; if its not, fix the leak then retest.

    HTH

    Peter Wright

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