With age, the crankcase ventilation valve membrane (Porsche CVCG) fails.
Through the damaged KVKG cayenne membrane, unaccounted MAF air enters the engine.
As a result, the engine is unstable at idle, it does not start well, misfires are possible.
At the same time, dust enters the engine from the road, it contributes to increased wear of parts and mechanisms. If a whistle is heard in the area of ??the KVKG Porsche, the membrane is torn.
The company sells Porsche valve assembly ventilation system, the cost of which is about 400 usd. We manufacture and sell KVKG membrane separately.
Repair Instructions KVKG Cayenne:
1. Remove the crankcase ventilation valve.
2. Remove the cover of the KVKG kaen and install a new membrane instead of the torn.
3. Assemble in the reverse order.
At the first start-up, after replacing the cayenne membrane, the engine may not work stably (this is due to the need to adapt fuel cards).
After the repair of the KVKG cayenne, the valve is restored to working capacity, and the suction of unaccounted air is also eliminated. The ECU needs some time to adjust the fuel cards. It is necessary to give the engine a little run, then turn off the ignition and start again. The engine will return to normal operation.
Please verify the part number on your vehicle before ordering.