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General Discussion
12 Valve Cummins Isues
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<blockquote data-quote="jayphizzle" data-source="post: 507504" data-attributes="member: 2032"><p>The boost reference tube is a small 1/8 poly tube that goes from the intake plenum to the rear of the AFC housing on the back of your injector pump. Some older models ran from the discharge side of the turbo. All it does is tells the injector pump how much more fuel to provide by sliding the rack forward. Mine cracked a fitting there before and went to crap! Ill find some pics and post up.</p><p></p><p></p><p>EDIT</p><p></p><p>Attached is a cut away of a p7100. The arrow below "Aneroid Fuel Control" is pointing directly at the boost reference hole. You should have a tube that connects here. If there is a leak in that tube it will run like crap!</p></blockquote><p></p>
[QUOTE="jayphizzle, post: 507504, member: 2032"] The boost reference tube is a small 1/8 poly tube that goes from the intake plenum to the rear of the AFC housing on the back of your injector pump. Some older models ran from the discharge side of the turbo. All it does is tells the injector pump how much more fuel to provide by sliding the rack forward. Mine cracked a fitting there before and went to crap! Ill find some pics and post up. EDIT Attached is a cut away of a p7100. The arrow below "Aneroid Fuel Control" is pointing directly at the boost reference hole. You should have a tube that connects here. If there is a leak in that tube it will run like crap! [/QUOTE]
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