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To plug or not to plug?

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Old 08-19-03, 07:25 PM
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Question To plug or not to plug?

I'm removing some vac lines under the upper manifold. Ive searched all the info I can about it and have not found what I'm meant to do with this line:

(Circled in red, running from LIM to the metal vacuum spider)

motor is a s5 13bt



Old 08-19-03, 07:28 PM
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pei > caek

 
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Plug.
Old 08-20-03, 01:19 AM
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That's the vac line for the fuel pressure regulator. It's not optional.
Old 08-20-03, 06:09 AM
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But from reading other peoples posts, I thought THIS was the vac line for the FPR? Whats it for?

(looking from drivers side (right hand drive) on the rear of LIM facing the firewall, slightly larger than normal nipple)

Old 08-20-03, 07:34 AM
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Dunno about that nipple, but on the S4 the one in your first photo is definitely for the FPR, and if you carefully follow the vac diagram in the S5 FSM it's the same.
Old 08-20-03, 08:30 AM
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Thanks NZ, I printed the vac diagram out and traced it with different coloured pens. The fpr connects just like you said.


Would the nipple in the 2nd pic have something to do with an auto gear box or cruise control? (manifold from a jap auto s5 turbo)
Old 08-21-03, 05:51 AM
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Its for the auto gearbox. Can only be seen in the auto box section of the fsm.
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