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Registered
Join Date: Jan 2006
Location: Indianapolis, IN
Posts: 279
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Can the mixture be changed mechanically? I have a Scirocco with CIS and I eliminated the O2 sensor and had the mixture at idle adjusted (3mm allen screw in the air vane). It runs great and still gets great gas mileage. I know it isn't a 6 cylinder but the technology is the same. You don't want to eliminate the FV because that controls the fuel mixture. Usually it takes inputs from the O2 sensor but it will default to a middle of the road duty cycle when disconnected from the O2 sensor.
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'94 VW Jetta
'85 VW Scirocco
'81 911 SC coupe Euro
'67 VW Bug
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