German850R Posted January 14, 2015 Report Share Posted January 14, 2015 Hi, I am currently trying to decide which turbo to take and one of the few options I am considering are the EFR turbo chargers by Borg Warner. They come with their own TCV / solenoid. So far, so good. But the tech spec says that the frequency of the PWM input should be less than 32Hz. Anybody know what the frequency the Motronic 4.4 sends to the TCV is like? Thanks Christoph Link to comment Share on other sites More sharing options...
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