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Posted by Mike Walker on July 20, 2006, 12:48 pm, in reply to "vw lupo 1.4 MPI eng code AUA"
Usually power supply bad causes this. Most common is faulty main relay. We are getting a large number of VW ECUs sent via several company's who use us to do their ECU testing and it is not normally an ECU fault , usually supply borne interference on the car.
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Link: http://www.atpelectronics.co.uk
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