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993 sputters when cornering hard

The car idle is good. So is accelerating. But when I corner fast and sharp it almost dies. Is this a sign of a failing corner accelerator ? Thanks in advance for input.
Old 09-27-2017, 07:41 AM
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I'm not sure if this relates, but I remember reading about an issue similar on a BMW and the fault turned out to be something with the injector harness being chaffed by the steering linkage somewhere under the car. It only happened when turning corners.
Old 09-27-2017, 12:40 PM
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Originally Posted by Dmitry at Pelican Parts View Post
I'm not sure if this relates, but I remember reading about an issue similar on a BMW and the fault turned out to be something with the injector harness being chaffed by the steering linkage somewhere under the car. It only happened when turning corners.
Thanks Dmitry. I'll give it a look.
Old 09-27-2017, 01:41 PM
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Quote:
Originally Posted by Dmitry at Pelican Parts View Post
I'm not sure if this relates, but I remember reading about an issue similar on a BMW and the fault turned out to be something with the injector harness being chaffed by the steering linkage somewhere under the car. It only happened when turning corners.

On a 911, the steering is in the front and the engine is in the back...




Andreas
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Old 09-27-2017, 02:36 PM
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On a 911, the steering is in the front and the engine is in the back...




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Guess it would be hard to tangle those two up on a Porsche thanks
Old 09-27-2017, 03:45 PM
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What is a "corner accelerator"?

How much fuel is in the tank? Sounds like it is starving?
Old 09-28-2017, 02:19 AM
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Its going to be tough to diagnose.
You will need to find out if it's spark or fuel causing the momentary sputter when cornering hard.

Do you have CEL on?
Do you have a diagnostic tool and a passenger to monitor when cornering?
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Old 09-28-2017, 03:25 AM
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Originally Posted by bazar01 View Post
Its going to be tough to diagnose.
You will need to find out if it's spark or fuel causing the momentary sputter when cornering hard.

Do you have CEL on?
Do you have a diagnostic tool and a passenger to monitor when cornering?
No cel. No diagnostic tool. ( wish I had a Bosch hammer but dang they're $$ ) full tank of 91 non ethanol octane. New plugs/cap/rotors. Fuel filter is about 1k old. The wife drives this and I'm hoping it was just in need of a Italian tune up. I haven't pushed it around a corner in a couple of days. Just odd that it's not happening whilst driving straight
Old 09-28-2017, 07:59 AM
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Originally Posted by mikedsilva View Post
What is a "corner accelerator"?

How much fuel is in the tank? Sounds like it is starving?
I guess lateral acceleration sensor is the correct term? I've not heard much about these going bad ? Just sounds like something that could give a bit of trouble ?
Old 09-28-2017, 08:25 AM
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We had a 964 keep cutting out on a road trip. It turned out to be a loose connection underneath the front fuse/relay box. I suspect something is moving on corners, cutting out a connection. Is it both left and right corners?
Old 09-29-2017, 06:19 PM
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Originally Posted by John McM View Post
We had a 964 keep cutting out on a road trip. It turned out to be a loose connection underneath the front fuse/relay box. I suspect something is moving on corners, cutting out a connection. Is it both left and right corners?
Thanks for your response. It cuts out turning right
Old 09-29-2017, 06:54 PM
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Try reseating or replacing the DME relay.
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Old 10-08-2017, 01:53 PM
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Try reseating or replacing the DME relay.
I didn't think of that. I have a spare. I'll give it a try. Thanks
Old 10-09-2017, 07:59 AM
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Quote:
I'm not sure if this relates, but I remember reading about an issue similar on a BMW and the fault turned out to be something with the injector harness being chaffed by the steering linkage somewhere under the car. It only happened when turning corners.
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Originally Posted by AOW162435 View Post
On a 911, the steering is in the front and the engine is in the back...


Andreas
I could be wrong and often I am... But I believe the thought of a chafed injector wire could still be valid, regardless of what it's rubbing on.

I just addressed such an issue on a friend's 05 Cadillac STS, where an Indy had told him it was a bad computer.

The OBDII code was a bad fuel injector circuit, #5 cylinder...
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Old 10-09-2017, 05:25 PM
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I didn't think of that. I have a spare. I'll give it a try. Thanks
Thatís what we tried with the 964. It worked immediately after changing the relay so we figured it was the relay. However, it was changing the relay that moved the loose wire under the replay board and let it work until car movement stopped it again. Good luck finding the problem.
Old 10-10-2017, 03:07 AM
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