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Title: adaptation fail fuel pump vcds Post by: carladams on September 27, 2015, 12:58:53 PM Hello I have recently been forced to change the cluster and engine ECU in my 2005 2.5tdi cabriolet , The replacements came from the same car model even same month of manufacture and all part numbers matched. The keys etc have now been matched and the pin obtained from the ECU The immobilizer status according to VCDS is showing good . The situation is complicated as these cars have an additional immobilizer in the Fuel injection Pump . I have fitted a rebuilt pump with new control module. Using the Ross-tech instructions for coding injection pump immobilizer 111 using channel 50 everything goes as per the instructions login pin correct etc but for some reason when i try to code the pump with the pin it comes up adaptation fail. Any help or guidance much appreciated. Thanks
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