Fuel pump voltage
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'm getting 8.6 volts at the plug (female side) where you plug the fuel pump into with the key on and nothing at off position. What voltage should I be getting and if my voltage is wrong how do i fix it? The battery is optima red top fully charged.
#2
TECH Fanatic
iTrader: (5)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
What is the charging voltage when it's running? Is the charging system working? If so, maybe you can back probe the power wire at/to the pump when running, if it will run. 8 volts seems like it is not nearly enough though. If so, look of a voltage drop from the fuel pump relay to the pump, connectors, damaged wiring etc..