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Help me diagnose my fuel system issue

Twisted_SPJ

Member
Joined
Jul 23, 2021
Threads
3
Messages
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Location
Springboro, OH
First Name
Sam
Vehicle(s)
2021 s550 401a pp1- twister orange
Hey there! I’m hoping the community can help me diagnose an issue I am having with my build.

I have a Sai Li return style fuel system. The symptoms are both fuel pumps are only getting 6volts (7.3-5xx when the engine is on)

Power wires are ran directly to the battery (fusable link at the battery)

Both grounds are perfect.

Any suggestions of what I should look in order to get 12v to both pumps??
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