Idle mixture adjustment

[aaunins21@hotmail.com (Aaron Aunins)]

     I had my idle mixture adjusted about a year ago at a local shop.  The 
car idles great, and runs great, so I haven't really had any reason to mess 
with it.
     However, I  recently ordered one of the cis-e mixture test harnesses 
for checking fuel mixture, with aspirations of adjusting it myself if 
needed.  Reading through the Bentley, this tool provides the differential 
regulator pressure current in mA. Mine is about 12-13 fluctuating, which 
falls within the normal range. My question is, is differential pressure 
regulator current alone an accurate indication of proper idle mixture? Is a 
measurement of CO content strictly necessary (probably yes)?

Just wondering,

Aaron
87 16V

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