Subject	FPR and variable fuel pressure
Posted by	beanz on April 30, 2012 at 12:26 PM
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Message	I think I understand how the FPR works: It's a mechanical device actuated by manifold vacuum that changes return fuel flow restriction to influence fuel pressure at the injector. (Right?) So now I'm just curious: Why not just let fuel pressure be maximal all the time (imagine the FPR with the vacuum reference disconnected)? Is it just a matter of saving wear on fuel system parts? Or am I missing something critical about how the FPR operates/what it does? I realize this is probably a silly question but I'd like to understand. Thanks. Andy
Follow Ups	FPR and variable fuel pressure - beanz 12:26:53 04/30/12 It is in fact a silly question, though an important one. - CoHPhasor 17:52:51 04/30/12 If you raise the fuel pressure with the intake air pressure, - not4resaleZ 21:46:11 04/30/12 It's not a silly question at all. See link inside. - ChristopherTheOne 19:36:38 05/02/12
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