1995 zx7 fuel pump relay

[Russ]

Does the fuel pump get voltage when key is turned on or only after the engine starts? If voltage is there before the engine is started then mine isnt working. Now the question would be, where is the ground or signal coming from that allows the pump to receive power from the relay?
Surely someone will know how this works. Thanks, Russ

[MFolks]

I do not know your particular model but on my 82 GPZ1100 B2 when I turn on the key the fuel pump runs for about 5 seconds pressurizing the system.

When I hit the start button, a run signal is given from the fuel injection computer using sensors on engine temperature,air temperature, and throttle position.

Get your shop manual out(if you have one) and trouble shoot the engine start sequence. A sensor of two may have loose connections,corrosion in the connectors, or a blown of faulty fuse.