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Engine Control Fault

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Old 06-21-2023, 10:22 PM
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Fly121
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Default Engine Control Fault

2019 Cayenne turbo with 70,000 miles.
had a ticking noise in engine. Got warning for engine control fault. Drove home shut vehicle off and it wouldn’t start. It would turn over but start.
towed to dealership. They ran faults. Problem with cam sensor. Removed cam sensor and engine stared. Ordered and replaced cam sensor and car will not start again.
they told me that it has been elevated to engineers for help. Vehicle has been down 3 weeks now. Any suggestions…anyone else has-be this issue?


Old 06-21-2023, 10:28 PM
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chassis
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4 years is at the start of the window for battery replacement. If you have an AGM I would throw a battery at it based purely on principle as a preemptive measure. If you have the expensive LiFePO4 battery I would let the dealer continue the diagnosis on his own.
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Old 07-18-2023, 08:59 PM
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Now at week 7 and car is still on the lift. Originally they thought it was a cam sensor issue. Continue to go back and forth with Porsche troubleshooting engineers. Now they think a faulty sensor on the flywheel. Engine coming out next week to get to it. My advice is to buy the extended warranty on these vehicles. My warranty ran out at 50,000 miles and I only have 70,000 miles but that is too many to expect a $150,000.00 Cayenne Turbo to run smoothly. First, it was and continues to be those f#@king brakes and the squeal. Then it was the water pump at 60,000 miles and on the lift for 4 weeks. Now this issue with engine fault and won’t start. Porsche North America customer service has been no help.
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Old 07-18-2023, 10:04 PM
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Thanks for the update, and sorry to hear about the challenges. Will you ride this out and pay for repairs? Or do you have a walk away price level if the bill exceeds a certain level?
Old 07-18-2023, 10:40 PM
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95_993
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I am sorry to hear this. This is very concerning and this is a brand killer ifnPorsche doesn't step and and make this right.
Old 07-18-2023, 10:53 PM
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Originally Posted by Fly121
2019 Cayenne turbo with 70,000 miles.
had a ticking noise in engine. Got warning for engine control fault. Drove home shut vehicle off and it wouldn’t start. It would turn over but start.
towed to dealership. They ran faults. Problem with cam sensor. Removed cam sensor and engine stared. Ordered and replaced cam sensor and car will not start again.
they told me that it has been elevated to engineers for help. Vehicle has been down 3 weeks now. Any suggestions…anyone else has-be this issue?

Seems like the fly wheel sensor problem has affected several Porsche models for sometime.

Seems, too, that it's harder to diagnose on 9Y0's?

Below is a link with some info..

https://www.google.com/url?sa=t&sour...XYqCUDD4Goa9Wg

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Old 07-19-2023, 09:16 PM
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Fly121
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Thank you for information.
Sounds like the water pump issue so many Porsche Cayenne’s have also.
Old 08-03-2023, 11:17 PM
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kenv
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Originally Posted by Fly121
Now at week 7 and car is still on the lift. Originally they thought it was a cam sensor issue. Continue to go back and forth with Porsche troubleshooting engineers. Now they think a faulty sensor on the flywheel. Engine coming out next week to get to it. My advice is to buy the extended warranty on these vehicles. My warranty ran out at 50,000 miles and I only have 70,000 miles but that is too many to expect a $150,000.00 Cayenne Turbo to run smoothly. First, it was and continues to be those f#@king brakes and the squeal. Then it was the water pump at 60,000 miles and on the lift for 4 weeks. Now this issue with engine fault and won’t start. Porsche North America customer service has been no help.
Check your states Lemon laws.
Old 08-04-2023, 09:05 AM
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Originally Posted by kenv
Check your states Lemon laws.
I thought there were specific tests for detecting defective flywheel sensors..

Makes Porsche dealers look dumb to have owners go through these never ending drama repairs, and many times expensive stringing repairs.

Old 08-20-2023, 10:23 PM
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Fly121
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Latest update at 12 weeks is that the flywheel sensor is likely the reason the vehicle won’t start.
Dealership advised me to sell vehicle with faulty error.
I want it repaired before selling the vehicle.
Estimated out of pocket cost is around $10,000.00
ugh - I hate Porsche.
Paid around $150,000.00 in January 2019 and I’ll probably be lucky to get $40,000.00 4 years later.
Porsche NA really not helpful.
Old 08-20-2023, 10:26 PM
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Is a flywheel sensor the same as a crankshaft position sensor?
Old 08-20-2023, 10:40 PM
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I don’t think so.
first diagnosis was they thought it was a cam sensor.
when unplugged, the vehicle starts but the the new cam sensor won’t allow the vehicle to start.
that’s when they did further testing. And now they said defective flywheel sensor.
Didn’t need to remove engine for cam sensor replacement.
motor needs to be removed for flywheel sensor replacement.

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Old 08-20-2023, 11:21 PM
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Originally Posted by Fly121
I don’t think so.
first diagnosis was they thought it was a cam sensor.
when unplugged, the vehicle starts but the the new cam sensor won’t allow the vehicle to start.
that’s when they did further testing. And now they said defective flywheel sensor.
Didn’t need to remove engine for cam sensor replacement.
motor needs to be removed for flywheel sensor replacement.
Agree that a crankshaft sensor is not a cam position sensor.

What part number are you referring to, when you use the term "flywheel" sensor?
Old 08-21-2023, 04:05 PM
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Originally Posted by Fly121
Latest update at 12 weeks is that the flywheel sensor is likely the reason the vehicle won’t start.
Dealership advised me to sell vehicle with faulty error.
I want it repaired before selling the vehicle.
Estimated out of pocket cost is around $10,000.00
ugh - I hate Porsche.
Paid around $150,000.00 in January 2019 and I’ll probably be lucky to get $40,000.00 4 years later.
Porsche NA really not helpful.
I wonder if the dealership will cooperate if you trade on a new Cayenne? They won't be out of pocket $10,000 to replace the sensor and they'll have a new car sale.
Old 08-28-2023, 08:38 PM
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Fly121
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Latest update.
Flywheel sensor looked ok so they didn’t replace.
Took valve covers off and found broken rocker.
‘Now they’re scoping the engine looking for ball bearings.
my question is wouldn't a fault code indicate that a cylinder was not firing?
Now they’re telling me portion of repair is approaching 15,000-17,000.00
i don’t think I should be responsible for mis-diagnosis especially when they were communicating with Porsche engineers.
14 weeks without my vehicle and counting.


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