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Old 09-09-2003, 12:36 AM
BobK BobK is offline
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Join Date: Nov 2001
Location: North Central Kentucky
Posts: 1,061
Sounds like your warm up regulator is a bit goofy or perhaps you have a bunch of vacumm leaks and the rich mixture when cold is compensating for incorrect air-flow reading. Usually there is a procedure and table for testing the regulator with a presure gauge and valve. Remember making my own to work on CIS VWs a long time ago. JC Whitney had one for less than $60 and I may just buy one. That control presure is almost everything to the CIS system.
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