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

[davedeck]

No emission testing in my neck of the woods. Now I need to figure out which line to pinch.

[san rensho]

Originally Posted by davedeck

No emission testing in my neck of the woods. Now I need to figure out which line to pinch.

Theres a rubber hose that goes from the throttle body then under the driver's side intake manifold. Just pinch it off at the throttle body.

[davedeck]

Thanks for the info!

[ArenaRed986]

Good information anyone care to post some pics to bring additional insight to this issue?

[pjq]

san rensho, what was the part number? From the part number I can probably locate it in one of my photos.

[pjq]

left side air intake distributor


now a closer look




this is the left front side of 2004S.

San Rensho is this the part your referring to?

[ArenaRed986]

Thanks for the pics- This really helps!!

Originally Posted by pjq

left side air intake distributor


now a closer look




this is the left front side of 2004S.

San Rensho is this the part your referring to?

[san rensho]

Originally Posted by pjq

left side air intake distributor


now a closer look




this is the left front side of 2004S.

San Rensho is this the part your referring to?

That's the one. Its a two part hose, one is hard plastic, the other a rubber hose. Pinch off the rubber hose and if your problems go away, then change out hard plastic hose.

[trogcamera]

Originally Posted by san rensho

Theres a rubber hose that goes from the throttle body then under the driver's side intake manifold. Just pinch it off at the throttle body.

Thanks for the tip.
I had been having the no start after fueling up with my 2000 boxster S plus irregular fast rough idle with cel error codes P0507 P1128 P1130 & P0446.

There is no emission testing in my area so I made a small clamp to clamp off the vacuum line .... worked great !!
No more rough or fast idle & car fuels up with no problems now.
Its been 3 days now with aprox 300 km driven & no cel or error codes yet.

[davedeck]

I'm having a bit of a problem discerning what hose to pinch. Is it the part hard plastic/rubber with the horizontal electrical connection? What did use to pinch it with?

[san rensho]

Originally Posted by davedeck

I'm having a bit of a problem discerning what hose to pinch. Is it the part hard plastic/rubber with the horizontal electrical connection? What did use to pinch it with?

No. It's the rubber hose that connects right to the throttle body. If you have identified the hard plastic hose, just trace it back to the throttle body and you will find the soft rubber hose zthat you need to pinch off.

[davedeck]

My man San Rensho! The next time I'm in Miami I will buy you the finest scotch we can find! I pinched that bugger off and no starting issues. Better yet no orange eye cyclops staring back at me. Idle and throttle response is great. Thanks again!

[ALEX SOL]

bringing up an old thread though seems a common problem and not cheap fix.

question: does the pinch off the line work? and does it throw a code?

I have ordered a 'bosch' type inline regen valve and will slip in over the weekend... and report back!

[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... check coils and change spark plugs.

while in the engine bay found two hose clamps loose and intake boots undone... so likely my vacuum leak...

question now is; would this cause the p0440 cel? I found these:

P0440:
Faulty EVAP canister purge valve - have no difficulty filling the fuel tank

Blocked fresh air line - not sure what this might be

Leaking EVAP purge valve - most likley

Leaking line between EVAP canister and intake - possible though not clear what's the sympton

EVAP purge valve incorrectly installed - never touched this b4

[ALEX SOL]

some mentioned the p0444 cel, here's a good fix... busted wire!

P0444 EVAP failure

[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.

[aussieboxy]

A quick question about the hot start problem.

Was the engine cranking ok but not starting?

My car cranks very slowly when warm or hot, only takes a few minutes of running to cause it to not crank well.

[Fuzzuki]

Clear as mud.
Can somebody put an arrow on the exact place to pinch off this hose.

How does a person pinch off a hose, anyway?

[tonythetiger]

Originally Posted by Fuzzuki

Clear as mud.

Can somebody put an arrow on the exact place to pinch off this hose.



How does a person pinch off a hose, anyway?

Vise grip or permanent...fold and zip tie


Sent from my iPhone using Tapatalk

[Dog'sLife]

I appreciate this thread.

I couldn't fill my 2000 S at the pump, or I looked like a simp just cranking it for two minutes. I figured a hack, I could fill it with a gas can, so when I needed gas I'd pump it to the can, then pour into vehicle. Well today I finally threw the 446 code, so I'll actually have to fix it. No driveability issues or hard start when hot, but I'm sure that's soon to follow.

Thanks to you folks I know where to look.