Fuel Pump stays on

[dvanden46 at gmail.com]

I have a 1987 Audi 4000 Quattro.  When I turn the key to the auxillary position the fuel pump stays on.  It used to prime for a few seconds and then shut itself off.  This is the second fuel pump that has done this and it is new so the problem does not rest with the pump.  I replaced the filter.   I also replaced the fuel pump relay and the x contact relay to be sure they were not the problem.  I also switched out the ECU to make sure that was not it.  I have done this and still the fuel pump stays on with the ignition key turned.  I think this is what caused the old fuel pump to stop working.


Also, the power windows will only work for the first few moments after I turn the ignition switch.  After that typically they will not work.  Again I changed the ECU and the  power window  relay and still the same problem.  If anyone has any input I would be glad to hear it.


David






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