I forwarded this question Stephan White, who does these conversions
in Sacramento, CA and he replied with the following link to the Samba
discussion of the same thing- see below:

Begin forwarded message:

> From: Stephan's Auto Haus <stephansautohaus@gmail.com>
> Date: October 12, 2009 2:36:47 PM PDT
> To: Melissa Mourkas <westywoman@mac.com>
> Subject: Re: 1.8T conversion OBDII [was:Re: Your GoWesty
> Engine...how do you like it?]
>
> Have them check out this link.  I just answered the same question
> on line on Thesamba.com last night.
>
> Link to : http://www.thesamba.com/vw/forum/viewtopic.php?t=380390
>
> -Stephan
>
> www.StephansAutoHaus.com
> 916-456-3040
>>
>> Subject: 1.8T conversion OBDII [was:Re: Your GoWesty Engine...how
>> do you like it?]
>> Reply-To: Roland <syncronicity1@GMAIL.COM>
>>
>>
>> Anybody know why the 1.8T with OBDII is acceptable but the Zetec
>> with OBDII
>> is not?  Maybe because it was a certified conversion from some
>> years ago
>> before the laws were strengthened?