Peter Lomas
We had one same problems you list, We checked Pin 52 when working OK wire showed Live Then brief earth then back to live, when fault present fuel pump relay not powering up.earth pulse missing when fault present. We fitted new ECU £800 from dealers (EDC161EU)
Regards Peter
Ps wire colour same at fuel pump relays as pin 52
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VW Golf 1.9 BKC 2005 - No comms with engine ECU - Fixed # - James Rushforth March 12, 2010, 6:34 pm
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