More fuel pump problems, help????? Options

[mxdude914]

I finally thought i had the fuel pump problem worked out but i was wrong. I traced it back to starting when i reconnected the brakelight wire that the p/o had cut, when i connected it, the brake light fuse would blow. I messed with it for a while and found that if i just cut the back up light wire the problem was solved. This is when the fuel pump started cutting out, then i thought it was fixed when it did it again, actually a few times after it warms up, then i just take the main relay out and put it back in and it will sometimes run for a minute or two. Sometimes it wont start back up unless i use a diff. relay. Does anyone have any explanations?

[Borderline]

I'm new around here and will try to help......someone will correct me if I'm wrong. the fuel pump circuit is a lttle complex. there is the solenoid and I believe a fuse on the relay board in the engine compartment. It is also connected to the fuel injection. The idea being that the fuel pump runs when the key is turned on and the engine is spinning. if you crash the car and the engine stops the fuel pump will stop too. the po on my 72 1.7 had connected the fuel pump to the aux connection on the ingition switch. Anyway there are several connections with the posibiltiy of corosion: the fuel pump relay. fuel pump fuse on the relay board in the engine compartment, fuel injection connector on the relay board (white wires), the main wiring harness connector on the relay board. I'm not sure why the taillights would effect the fuel pump. i actually have a broken wire on the main wiring harness connector...a real pita to find. good luck!! (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif)