Trouble diagnosis: I connect Porsche Piwis 2 to the vehicle and read out these trouble codes:
Porsche PIWIS 2 V18.15 V17.500 Free Download
P0171: System too Lean (Bank 1)
P2195: O2 Sensor Signal Stuck Lean Bank 1 Sensor 1
P2414: O2 Sensor Exhaust Sample Error Bank 1 Sensor 1; V424 received from the HVAC control unit data is invalid; V0101 Communication transmission control unit.
P1628: Transmission control unit communication
P1619: Communication transmission control unit
Read out the real data: as the real data described, the O2 Sensor Bank 1 display mixture too lean, the fuel close to idling of Bank 1 correct adapt (RKAT) to 3%, O2 Sensor 1 still display mixture too lean (as the following table shows), so the control unit display the above-mentioned trouble codes.
Trouble code reset: after changing O2 Sensor Bank 1 Sensor 1, the trouble code is reset
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