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Old 04-08-2021, 08:52 AM   #8
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Originally Posted by truegearhead View Post
The fuel pressure regulator is installed on the feed line on Porsches? How does that work? Now I'm really confused.
On the early cars, it was a vacuum operated diaphragm device on the fuel rail, as in the diagram.

The early fuel system included a return fuel line and had a fuel rail mounted fuel pressure regulator. For 2002, there is no return fuel line and the fuel pressure regulator is mounted in the fuel tank.
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Last edited by JFP in PA; 04-08-2021 at 08:57 AM.
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