Lots of wierd answers ,IF you are real lucky the ecu won't be toast but it sound like it,ALL earths have to be spot on and connected to clean contacts period.
VW addressed this problem in the very late mk2's and the first mk3's cause there were issues with the first dijifant cars,the ecu suffers because it needs a good earth,if not they cook and overfuel or work @ all.
MM no cold start injector in the dijifant ,its done by the ecu and gets a signal from the temp sensors.
No brown wires will ever have power as they are for earths or ground and are part of that system,bad earths can cause a number of other problems with the engine also.
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