no gas

[rede30]

It seems like i always so a thread title such as mine but i couldnt find anything helpful. I had my s50 running like a top for about two days but let it sit for a few days while some parts came. During that time all i did was put in a new chip and now my fuel pump wont switch on. The pump itself is fine, the relay is fine, and everything i touched with taking the dme out is fine. Any ideas as to why i have no power to the pump? I am going out to get a volt meter because i cant find mine but i just thought i would throw this out here for when i get back.

*i also tried putting the old chip back in and that didnt help.

[rede30]

i now have more to add to this. I double checked my fuel pump and i am confused about something. I wired the pump to run straight off the battery and i ran it without the gas line hooked to it but no gas came out. I figured it would pump gas up, is there more to this process? Do DME's get really hot, i felt mine and it was almost to hot to touch, this worrys me.

[fretburnr]

the pump (if it's in the tank) should be picking up fuel and spraying it. that is, if there's fuel in the tank, or the strainer's not blocked.

Also running a pump without fuel can overheat it and kill it... but if it's running then i'd guess fuel intake is the problem.

can't speak about the dme, i think mine gets warm too (has a heatsink) but not melting-plastic hot.

[rede30]

i just realized i had my wires crossed on the pump. It still sounded like it was running correctly so that was confusing.