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High fuel pressure

This is a discussion on High fuel pressure within the General Help forums, part of the LSx Technical Help Section category; With all the searching I've done on 3 different websites it's either the return line is plugged up or the ...

  1. #21
    Member Blue28's Avatar
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    Navy Blue
    1999 Camaro Z28

    With all the searching I've done on 3 different websites it's either the return line is plugged up or the regulator is bad. I've got a new FPR on order myself since my pressure jumps between 70-80.

  2. #22
    Senior Member bills98ta's Avatar
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    1998 Trans Am

    My guess is the fpr... I doubt that the line could plug, maybe kink.
    With my new twin pumps, it's been holding 72lb, so I changed the injector KPA flow rates... Same as changing the injectors. It worked ! Do you have HP Tuners ?

  3. #23
    Member Blue28's Avatar
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    Navy Blue
    1999 Camaro Z28

    No HP tuners, I also keep reading/hearing that the injectors work better at 65lb, or below.

  4. #24
    Senior Member bills98ta's Avatar
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    Let us know if the fpr takes care of it...

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