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Author vacuum on fuel pressure
Mr-SEH
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Registered: 10th May 10
Location: Dark places
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26th Feb 13 at 19:56   View User's Profile U2U Member Reply With Quote
vacuum on fuel pressure not asking for help so I should be posting in correct section


Just a general question the vacuum pipe on a fuel pressure reg with it not connected what would happen like over fueling
/ under fueling / bad mpg stuff like that
Sorry if it sounds retarded.
Actually I'm not.

[Edited on 26-02-2013 by Mr-SEH]
davegreen
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Registered: 20th May 12
Location: Oxfordshire
User status: Offline
26th Feb 13 at 21:59   View Garage View User's Profile U2U Member Reply With Quote
depends on your regulator, some give extra fuel pressure when the throttle is opened/full load high vacumm in the inlet, others are for tubro/forced induction where these pressure in the inlet under full load. if your not sure which type yoy have connect a vacumm pipe to the regulator and see what the fuel pressure does when the throttle is opened. if it goes up all good, if it drops you dont need the vacumm line.

 
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