That's a great repair Simon and how it should be from the factory.
I will be carrying out Planenuts solution as a preventative measure when i get my car back.
With the fuel filter on the return line I'm surprised there's not issues with blocked and worn injectors with the only filtration being the gauze in the tank.
The only way to filter the fuel before the injectors is to use a separate pressure regulator on the return line as per Lightspeeds setup.
The combined filter and pressure regulator used as standard is for a returnless type of injector set up i think, with supply from pump into the filter, return from filter back to the tank and 58psi supply to injectors on the third connection.
Guess MMC went for a return from injector set up to avoid heat soak causing vaporizing fuel problems.
