Hi guys,
my 997.1turbo just finished my front clutch oil change. I found that when car running on 2nd gear around 14-16 km/h with no step on gas, car would shock（or say jerk） randomly. no problem code or faulty light. mechanic disconnected a plug(attached, no.12 says temperature sensor) near AWD controller and the car runs normal.
they told me is AWD controller faulty. I than change the oil but still shcok（jerk） randomly.
( when car on sport mode, it works fine with no sudden shock)
sorry abt my english, but anyone know what happened and how to fix it.

 

it might be front clutch failure?

 

Did you ever resolve the issue?