can't keep current to my fuel pump.
Thread Starter
On The Tree
Joined: May 2010
Posts: 155
Likes: 0
From: Vancouver,WA
can't keep current to my fuel pump. Ok I'm at a complete loss. In my 94 formula my pump and relay are new. I even got a good used sending unit. But for some reason I can't keep juice to the pump. Any ideas or a wiring diagram you would recommend? I thought for sure the issue was resolved. Could it actually be a ecu issue? Can I run a hot wire straight to it? Just jumped off my fuse block? Please help!
Thread Starter
On The Tree
Joined: May 2010
Posts: 155
Likes: 0
From: Vancouver,WA
Which fuse? I don't see one related? It's hit and miss. It'll stay running for a few then die. After I replaced the sending unit. It stayed running for a while before I shut it off. Then when I went to start it again after I buttoned everything up. It barely ran until continuously falling on it's face. Now the pump doesn't even turn on with out applied power from my power probe.
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Staging Lane
Joined: Aug 2013
Posts: 50
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are you getting current to the sending unit? in my rx7 i would get current to the fuel pump connector on the outside of the sending unit. the connector inside of the tank burned up internally and it would not make a connection. so the power would stop right before the pump. this has happened to me twice after upgrading my fuel pump on 2 different cars.
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Verdad Gallardo Thread Starter
On The Tree
Joined: May 2010
Posts: 155
Likes: 0
From: Vancouver,WA
I had replaced all of this stuff. Even a different sending unit. Pump and relay are brand new. Sending unit was in better shape than in my car. When I installed it. Seemed to had worked. At one point it ran fine. Then it cut out. I applied power with my power probe and that didn't seem to do a dam thing. Which it should have I would think? best guess at this point could be a bad internal harness on the ground side or perhaps I got a bunk pump. Just sucks right now being that this is when the rain returns to the northwest. So it's been dumping like mad!