I recently replaced my fuel pump, while doing so I also took apart the fuel pump harness and replaced several contacts and wires. when I put everything back together my fuel pump overheated and caught on fire!! the mfg is sending a replacement, they said it sounds like a faulty pump. however, I want to make sure I had the pinouts correct on the relay.my engine is a '92 4.3 with 2 barrel holley.
also, my original prob was the engine spartically cuts off while planing sometimes. I haven't had a volt meter with me when this happens to find out of the pump actually was shorting out. however, I did check both diodes while the wire harness was apart and they both checked fine. When the engine cut off, it gradually died as if the gas had shut off. The iginition was still firing. whe it does this, the motor wouldn't crank back up for about 20 min's, then it would fire back up perfectly.
I checked/replaced fuel filter, fuel lines, drained the fuel tank, anti syphon valve, and fuel pick-up screen. everything was fine and worked perfect.
my alternator is keeping the battery charged fine, so I suspect it is getting proper power to the pump at all times. the red/white wire does red 12v on the pump
any ideas would be greatly appreciated!
