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ike84 · 01-20-2021, 06:18 PM

I think I found the answer to the fuel pressure regulator...
The regulator valves open inversely to manifold pressure (I. E. Lower manifold pressure, such as at idle, causes valve to open up). This prevents the vehicle from running rich at idle. The 2002+ vehicles have a pressure regulator, but it is located in the tank apparently? And has a "vacuum" line that runs all the way back to the manifold? That seems crazy to me, but this is Porsche were talking about...

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01-20-2021, 06:18 PM	#2
ike84 Registered User Join Date: Oct 2020 Location: KY Posts: 1,216	I think I found the answer to the fuel pressure regulator... The regulator valves open inversely to manifold pressure (I. E. Lower manifold pressure, such as at idle, causes valve to open up). This prevents the vehicle from running rich at idle. The 2002+ vehicles have a pressure regulator, but it is located in the tank apparently? And has a "vacuum" line that runs all the way back to the manifold? That seems crazy to me, but this is Porsche were talking about... Sent from my POCOPHONE F1 using Tapatalk __________________ 2000 Box Base, Renegade Stage 1 performance mods complete, more to come When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...