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Author Question: Why is a vacuum line attached to a fuel-pressure regulator on many port fuel-injected engines? (Read 63 times)

HudsonKB16

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on: Nov 30, 2019
Why is a vacuum line attached to a fuel-pressure regulator on many port fuel-injected engines?
◦ Create an constant pressure drop across the injectors
◦ Draw fuel back into the intake manifold through the vacuum hose
◦ Raise the fuel pressure at idle
◦ Lower fuel pressure under heavy engine load conditions to help improve fuel
Advanced Engine Performance Diagnosis ¦ Halderman ¦ 4th Edition
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Marked as best answer by HudsonKB16 on Nov 30, 2019

Loise Hard

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Reply #1 on: Nov 30, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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HudsonKB16

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Reply 2 on: Nov 30, 2019
YES! Correct, THANKS for helping me on my review

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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