I changed a fuel pump that a service shop said was bad. It would start and run for a few minutes and then stop. If it started at all. I dropped the tank and put a new pump in. The car did not start at all, not once. Not even fire. I had to install a new electrical connector inside the tank on the pump. The connector was different than the one in there. I connected black wire to black and grey to grey, thinking that made sense. Took off inline fuel filter next to tank. Had someone turn on key to see if fuel would come out. Nothing. But I did hear fuel running loudly through the return line. Which confused me at the time.
Thinking of it over night, could it be not likely, very likely those lines are in reverse, causing the pump to pump backwards. Which is why I heard fuel going through the return line? If this is the case I am going to try tomorrow to reverse the lines going into the tank. Instead of the fun of removing tank again.
What are your opinions on this. Why would pumps have black and grey wires that hook up differently? Do they? Anyone have this problem before?