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HELP fuel pressure gauge


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I tied mine into the driver side fule rail. There was a spot for one on my maggie. I had to unscrew the valve and screw in the sender unit. Make sure to use the tape on the threads so it won't leak. Make sure you have the correct sender and wiring harness. Autometer included the wrong wiring harness with my gauge. This info is for a radix SC.

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If you are running the stock intake you are going to need a -4 to 1/8th npt adapter and you an remove the core from the shrader valve and install the adapter and then the fuel pressure sender on there.

 

 

I had a hell of a time figuring that out until someone told me I needed the -4 AN fitting. I also had to run a wire from the sending unit to a good ground.

Good luck

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