I have a 1987 BMW 325I. I’ve just gone through a extensive: change gaskets(head off), hoses, cooling system etc. I have the dash out so I could change the heater core and evaporator and put all new foam seals. I have everything installed in the engine bay correctly but the dash is still out I plugged in the gauge cluster and the little trip computer but none of the other switches and I can turn the key and turn The engine over but the fuel pumps won’t run also I put new fuel pump‘s. Does anyone have any ideas what I missing or could share the complete fuel pump wiring diagram??
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