I just put in a new motor, had a problem getting oil pressure, finanly got pressure, took it for a ride and the car stalled about a 1/2 mile from my house. It didn't seem that the fule pump was working, cause it wouldn;t pressurize when i turned on the kye, (I have two gauges). Also, no fule pump sound, and ofcoarse it wouldn't start. Had to get a tow home. Anyway, ideas? How do you diagnose this? isn't there a power test for it? is it a relay or the pump. the car sat for 4 years, but there was a new walbro 355 in there. ideas? or is it something else? thanks

 

I would check your grounds before you do anything else. If you are not dropping any voltage on the ground side of the circuit, then I would check to see what available voltage to the pump is. If you have available voltage, put a load on the circuit and see if your voltage changes. It shouldn't change all that much. If you have a good power, good ground, all that's left is the load.

 

it was the 20 amp fuse that protects against no oil pressure. and when i changed it I found that I have no oil pressure again, except this time th galley plugs are in. Ideas? I fear that I might have spun a bearing on this new motor. -J
__________________UPDATE:
just disconnected the blower and now the pressure is perfect.....I don't think it was the blower, but maybe the sender was clogged. I have no clue what the hell the problem was. seems to be okay now. BUT AFTER IT WARMA UP IT RUN LIKE CRAP AND BARELY IDLES, any ideas. Could it be the coil, one of the wires brok on the coil and I had to rig it to run, ...now that I put in a new pigtail/connector....it runs real crappy at idle after warm. and it doesn't run well when accelerating either. Could the coil be shot?