Checking fuel output before filter, and new 996 fuel filter installed

 

Before installing new fuel filter, tested quantity delivered by fuel pump before it enters the filter. Connected a hose to the fuel line, and activated the fuel pump for 30 seconds - got way over 850ml which is a good result.

 

New Mann fuel filter WK832/1 to install. Fairly simple... hardest part was getting the retaining metal band connected properly to the metal bracket.

Primed fuel lines to the engine - holds better pressure then before by about 0.5bar.

However, no change to startup - kicks over instantly, but then rough idle again sounding like fuel starvation. Next thing to do - remove fuel injectors and check for blockages.