Success! Finally fixed the hard start while hot and fueling issues.

[JCGMS]

Originally Posted by ALEX SOL

my issue is hard starting after fueling up. p0440 cel

i need to crank the engine, while massaging the gas pedal to floor and back a couple times, then sputters to life...

also have a lumpy idle / hunting idle.... quite annoying...

Alex Sol,
Any updates ?

I have the exact same two issues:
1. Crank but no start after filling up with any amount of gas. Pump the throttle while cranking and eventually if starts. If you let the car idle in the first few minutes of driving (e.g., stop sign to get out of gas station), the car will stall again.
2. Lumpy idle on occastion.

I bought the part mentioned above (Purge Valve 99611012906). Nearly $300 , my mechanic suggested I buy the Porsche branded part since he has seen the aftermarket ones fail. Haven't had the chance to install yet since the car is currently stored in another state.