Can we do a preliminary check on the FUEL PUMP RELAY?
Using a voltmeter or testlight (preferred) check for B+ on the following pins:
D1_5: B+ (Hot at all times)
D2_4: B+ (Hot during KEY ON/CRANKING).
D1_6: KEY ON (B+ (For 2-3 seconds)) or CRANKING (B+ (Hot during CRANK)).
If not, is there anyway you can use that RED wire to control a relay, then run B+ from battery (fused), to relay, to fuel pump?