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    Re: Injector firing test

    The fuel rail pressure inlet should be larger than the return port out of the pressure regulator. The inlet is for 5/16" line, and the outlet on the regulator is 1/4". I can see what you mean though...
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    Re: Injector firing test

    That will be your problem. The FPR is acting as a check valve and preventing the fuel from reaching the rail.
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    Re: Injector firing test

    The return should be a decent amount of flow at idle. You shouldn't see a ton of pressure though, since it's after the regulator.

    Do you have the HEP hooked up and working properly? The computer...
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