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2014 TTS PDK stalling when stopped

 
Old 11-04-2018, 07:12 PM
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P911T
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Angry 2014 TTS PDK stalling when stopped

Hi all, I have a CPO 2014 911 Turbo S, PDK with 17,000 miles. Picked it up last week in DC, drove it half way back to NYC before it decided to keep stalling when I came to a complete stop. Had it towed to Porsche in NYC, where they replaced the battery (paid $800 for this) and said it was fixed. Today, I drove the car for several hours without any issues until I got back into NYC traffic and it began stalling each and every-time I stopped (the auto shutoff is not enabled).

If I keep the revs up pressing the accelerator with right foot heal, it won't stall. Driving though NYC traffic like this is very unsafe, I'll be calling Porsche Manhattan in the morning to address. Thoughts on what it could be?
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Old 11-04-2018, 07:19 PM
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abiazis
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Let us know....could be a number of things....fuel filter, pumps, etc..
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Old 11-04-2018, 11:23 PM
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Are you using 93 octane fuel???
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Old 11-05-2018, 07:41 AM
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Yes, 93 Octane.
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Old 11-05-2018, 07:53 AM
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I just found this after a quick google search. Both times, the issue occurred within 30 minutes of filling up the gas.

A faulty purge valve caused my 98 900SE turbo to stall or bog down at stops. Took numerous mechanics and many check engine lights to track down this cause. It is closely related to the charcoal canister mentioned in a previous tip. It now idles flawlessly without any anomalies.
JEFF COOK CONTRIBUTION: Wow......this really saved my sanity. My 1998 900SE turbo was stalling about 30s to 1min after coming to a stop. When accelerating and driving there was no problem. I took it to three mechanics and they could find nothing wrong with it. One of them was even a self-proclaimed "Saab only" mechanic. I realized the problem was worse right after filling up the gas tank--and apparently this is consistent with EVAP purge valve issues. I
popped in the $50 part the next day, and the idle is now flawless.


Source: https://www.thesaabsite.com/faqs/9-3...p.html?id=1120
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Old 11-05-2018, 10:28 AM
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When it stalls in traffic, does it require a restart or does it start when you remove your foot from the brake and to the gas pedal?
If it starts up without requiring a restart the automatic off at traffic lights may be "ON".
It is somewhat counter intuitive that the red light on that Auto Shutoff control indicates the Auto shutoff is "OFF" rather than "ON".
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Old 11-05-2018, 10:46 AM
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P911T
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It requires a complete restart (key OFF > shift to P > key ON > shift to Drive)
Auto OFF is disabled.

I dropped the vehicle to my dealer this morning and it occurred in front of them. I will report back once they dig deeper.
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Old 11-05-2018, 02:15 PM
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Originally Posted by wocka View Post
Hi all, I have a CPO 2014 911 Turbo S, PDK with 17,000 miles. Picked it up last week in DC, drove it half way back to NYC before it decided to keep stalling when I came to a complete stop. Had it towed to Porsche in NYC, where they replaced the battery (paid $800 for this) and said it was fixed. Today, I drove the car for several hours without any issues until I got back into NYC traffic and it began stalling each and every-time I stopped (the auto shutoff is not enabled).

If I keep the revs up pressing the accelerator with right foot heal, it won't stall. Driving though NYC traffic like this is very unsafe, I'll be calling Porsche Manhattan in the morning to address. Thoughts on what it could be?
Sucks, they should be able to find out pretty quickly what it is. I'd be PO'd about the $800 battery,....they need to send some good will your way with this little profit maneuver.
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Old 11-05-2018, 02:33 PM
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I abhor service shops that throw expensive & overpriced parts at a problem without much diagnosis and without fixing the problem...

Like $800 for an unneeded battery that would be $200 at a battery shop.
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Old 11-05-2018, 02:35 PM
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P911T
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I will request a refund when they fix the outstanding issue.
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Old 11-05-2018, 03:28 PM
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Check fuel filter is my guess
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Old 11-05-2018, 06:30 PM
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Happened to my TT about two years ago. Mine was intermittent so I recorded it on my phone to show the tech. The first thing they did was reload the engine software. Tested it for a couple of days with no issue. Hasnĺt done it since (knock on wood). Good luck.
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Old 11-05-2018, 07:38 PM
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Check for intake leaks
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Old 11-05-2018, 10:21 PM
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Originally Posted by wocka View Post
I will request a refund when they fix the outstanding issue.
Good luck with that one. Porsche Manhattan doesn't have a stellar service record.

https://rennlist.com/forums/991/1093...e-4-tires.html
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Old 11-05-2018, 10:21 PM
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Either fuel delivery or ignition issue. Either one can be due to multiple issues. Need more data to diagnose. Did you check OBD?
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