 Another question?, fuel pump |
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| hndyhrr |
 Oct 5 2022, 07:26 PM
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#1
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Senior Member  Group: Members Posts: 554 Joined: 1-September 13 From: central point,oregon Member No.: 16,332 Region Association: Pacific Northwest 
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I am putting a two port fuel pump in the pumpkin in the front trunk. Do I need the return line? Can I plug it off/up?
Thanks guys Renee |
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| hndyhrr |
Oct 5 2022, 07:26 PM
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#2
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Senior Member Group: Members Posts: 554 Joined: 1-September 13 From: central point,oregon Member No.: 16,332 Region Association: Pacific Northwest
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QUOTE(hndyhrr @ Oct 5 2022, 06:26 PM)  I am putting a two port fuel pump in the pumpkin in the front trunk. Do I need the return line? Can I plug it off/up? Thanks guys Renee oh 1.7 engine with FI |
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| Montreal914 |
Oct 5 2022, 07:34 PM
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#3
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Senior Member Group: Members Posts: 1,541 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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The FI fuel loop is a loop (IMG:style_emoticons/default/smile.gif)
Therefore, your new two port pump will supply fuel to the fuel rails controlled by the fuel pressure regulator. The excess fuel flows back to the tank. So in recap, the larger tunnel line feeds the fuel to the FI system, and the smaller tunnel line carries the excess fuel from the engine bay back to the tank. Good luck and use the correct hose clamps, not the gear type. |
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| brant |
Oct 6 2022, 04:58 PM
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#4
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914 Wizard Group: Members Posts: 11,612 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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Lots of reasons not to cap a return line. No matter if it’s FI or carb’s
All auto companies use them for a reason |
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