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The Terminator
How-To
Return style wiring HOW TO allowing OE type fuel pump actuation
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<blockquote data-quote="GodStang" data-source="post: 11445119" data-attributes="member: 11142"><p>On the stock Returnless system you have the PPRV that holds the fuel in the line. It is for starting purposes mostly. Those that have removed the PPRV (or changed hats) sometimes have start issues because there is no longer fuel held in the lines by the PPRV. The FRPS and the FPDM work together with a tune to decide when for the pump(s) to come on. The FPDM is the part that actually sends the signal for it to pulse. When I went to a Fore hat returnless setup I had to add a -8an Check valve back into the system to help with starting issues.</p><p></p><p> *EDIT* According to what I could find this is suppose to be controlled by the FPR once it hits the required pressure it is suppose to send a signal to shut off pump or cut power. Wonder if since our Computer is made for returnless does it not know to not shut off or if it is setup wrong in the tune. How is your system setup? I am sure there is a way to do it.</p></blockquote><p></p>
[QUOTE="GodStang, post: 11445119, member: 11142"] On the stock Returnless system you have the PPRV that holds the fuel in the line. It is for starting purposes mostly. Those that have removed the PPRV (or changed hats) sometimes have start issues because there is no longer fuel held in the lines by the PPRV. The FRPS and the FPDM work together with a tune to decide when for the pump(s) to come on. The FPDM is the part that actually sends the signal for it to pulse. When I went to a Fore hat returnless setup I had to add a -8an Check valve back into the system to help with starting issues. *EDIT* According to what I could find this is suppose to be controlled by the FPR once it hits the required pressure it is suppose to send a signal to shut off pump or cut power. Wonder if since our Computer is made for returnless does it not know to not shut off or if it is setup wrong in the tune. How is your system setup? I am sure there is a way to do it. [/QUOTE]
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How-To
Return style wiring HOW TO allowing OE type fuel pump actuation
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