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991 gt3 engine misfiring / letters

 
Old 05-27-2016, 02:24 PM
  #31  
tomraki
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Just picked up my car from the dealer. They said my misfire did not qualify for the bulletin. I spoke with the tech and he said he was instructed to try and replicate the issue by running the car at 7k rpm continuously. He did that and couldn't get it to misfire. He told me only if it happens again will I qualify for the bulletin and they will change the coil and spark plugs. I guess I will just take the car back and drive it hard to see if I can replicate it. I'm registered for PCA at NJMP the last week in June so hopefully all will be well or I can get it to misfire again and will take it from there. That is my update for now.
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Old 05-27-2016, 03:06 PM
  #32  
bsavino
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so what exactly did they do, just cleared the codes? i would get that car up to 9000 rpm and see if it pops on, my tech was able to reproduce the problem immediately after he changed the coil pack with high revs...how high were your revs when the fault came on?
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Old 05-27-2016, 07:25 PM
  #33  
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Originally Posted by bsavino View Post
so what exactly did they do, just cleared the codes? i would get that car up to 9000 rpm and see if it pops on, my tech was able to reproduce the problem immediately after he changed the coil pack with high revs...how high were your revs when the fault came on?
Yes all they did was clear the code and what do you know?...it just happened to me again. I was driving on my way out to the Hamptons went to pass someone and once it hit 9k rpm car went into reduced engine performance road. I will now be stuck with the car like this all weekend. I'm beyond f'n pissed as I told them this morning it happened to me twice and once after clearing the code. They refused to proceed with the bulletin since they couldn't recreat the problem. See below error message that popped up again.


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Old 05-27-2016, 07:58 PM
  #34  
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At least you have a gt3 for the weekend.
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Old 05-27-2016, 10:29 PM
  #35  
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Just seems like PAG is really being difficult.
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Old 05-28-2016, 11:38 AM
  #36  
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Will that code clear with key cycles or does it require the the Porsche computer to clear?

I'm hoping for you it can then you can drive over the holiday to 8999 rpm!
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Old 05-28-2016, 11:56 AM
  #37  
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Welcome to the club, mate. Next week they will open your engine.
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Old 05-28-2016, 12:43 PM
  #38  
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So when it goes to reduced performance mode how bad is it driving it? Mike
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Old 05-28-2016, 12:44 PM
  #39  
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Woke up this morning and the code was gone. This is so bizarre. Had to run to the supermarket and was shifting at 9k rpm. It was only a short drive so the engine didn't get a chance to get up to high temp but seems weird that it just went away overnight.
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Old 05-28-2016, 12:47 PM
  #40  
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Thanks for your posts. All very confusing and disturbing. Please keep us in the loop. Good luck!
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Old 05-28-2016, 01:04 PM
  #41  
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There are obvious reliability issues with this 991 GT3 engine. Peak power comes in at ~8200 RPM, the gears are nice and short, why rev it to 9000 so much? Perhaps the redline is placed too high.

When I drove the 991 GT3 for an extended time on the track and in the suburbs of Hockenheim, the guys told me to shift around 8200 or so.
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Old 05-28-2016, 01:26 PM
  #42  
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Originally Posted by 996FLT6 View Post
So when it goes to reduced performance mode how bad is it driving it? Mike
Like family sedan having 1.6 petrol with no turbo.
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Old 05-28-2016, 01:28 PM
  #43  
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Originally Posted by tomraki View Post
Woke up this morning and the code was gone. This is so bizarre. Had to run to the supermarket and was shifting at 9k rpm. It was only a short drive so the engine didn't get a chance to get up to high temp but seems weird that it just went away overnight.
It's usual. The code is still in the log. Don't worry about it, they will see the problem in logs.
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Old 05-28-2016, 02:39 PM
  #44  
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Originally Posted by 997s07 View Post
There are obvious reliability issues with this 991 GT3 engine. Peak power comes in at ~8200 RPM, the gears are nice and short, why rev it to 9000 so much? Perhaps the redline is placed too high.

When I drove the 991 GT3 for an extended time on the track and in the suburbs of Hockenheim, the guys told me to shift around 8200 or so.
I don't usually shift at 9k rpm however when I was on track in auto pdk sport mode, it shifts at 9k on its own and that's when I had the issue. The only reason I've been shifting at 9k so much recently is to try and recreat the issue, not because of normal driving style.
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Old 05-30-2016, 01:44 PM
  #45  
Alan C.
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Hopefully they will get this sorted out to your satisfaction.
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