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Discussion Starter #1 (Edited)
While driving along on the highway today somewhere between 65 - 75 mph, this error code (see below) pops up

"Engine control fault
consult a workshop
Driving permitted"

There was no notable change in performance or driving character. Roughly 6600 miles, 8 days short of 2 years of ownership.

I take the car into the dealership on Wednesday morning. Morning temperatures forecasted 28 degrees, summer tires! :eek:
 

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Discussion Starter #3 (Edited)
You are being admonished for driving summer tires in temperatures well below recommendation. Porsche is like Santa................better watch for coal.
Actually, today we had a break in the weather. 60 degrees! :) You guys must have missed the temperature read-out in the photo showing the fault. We haven't had a nice day in quite some time, so I was really excited to get out. Didn't expect the engine fault.

My comment about the 28 degree day, was my lament because I will have to drive to the dealer 19 miles away in the low temperatures. I will just have to take it easy.
 

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Discussion Starter #4 (Edited)
So, as it turns out the diagnosed problem with my 2017 Cayman S is faulty Oxygen Sensor (bank #1, sensor #1). This seems consistent with another instance of this fault described by a 718 owner on Planet 9.

Dealer had to order the part, so I return to the dealer on Friday to complete the repair. I guess part of the process of determining the problem, there must have been a reset as the fault message was cleared. It returned by the time I arrived home.

Couple of data points:

- 6700 miles
- Manufacturer date 09/16 for my car
- other than the fault message in the display, there was no indication that there was a problem with the car
 

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Discussion Starter #5
Just returned home with Quicksilver. :)

I chose to wait while the service was being performed. I have to recommend Porsche of Bethesda if you live in the area and require warranty/dealer work. 3 visits, and I'm more impressed after every visit.

Back to the service: From the Service Invoice

Part # P9A2-606-183-01 Oxygen Sensor

6827 B1S1 02 sensor
internal failure 1.35
Code P2196 stored in DME for B1S1
02 sensor stuck rich
checked actual values for fuel trim ok at this time
followed GFF diagnosis information found 02 sensor faulty
replaced sensor
cleared codes and performed short tests, all passed

see attached
 

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Discussion Starter #6
I forgot to mention, there was a GT2 RS on the showroom floor. It had a "Sold, Please Do Not Touch" sign on it. Amazing car to behold. Interesting that it had the Wessiach Package, but no roll bar.
 
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Winstonwolf
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