Porsche Diagnostic and Repair Information ,Wiring Diagrams. DTC. TSB. Types: TSB, DTC, Wiring Diagrams, OEM Procedures. Trusted by more than 400,000 technicians. OEM accurate fix for faster repairs. Repair Procedures and Labor Times. Factory Auto Repair info. Request A Demo Today. Factory-Correct Diagrams. Factory Part Numbers. Maintenance Schedules. Repair Procedures. Labor Times. Types: TSB, DTC.car insurance, auto insurance, auto, car, vehicle, insurance, quote, quotes, online, insurance，auto, autos, car, cars, vehicle, vehicles, used car, pre-owned car, pre-owned vehicle, used auto, used vehicle, rental，auto racing news, car racing news

• P2190

  P2190

  
  

  Diagnosis information - DME V6 DFI

  
  

  Lambda control adaptation RKAT, bank 2 - range near idle speed

  
  

  NOTE: If the fault >P0445 - below limit value< is entered, first rectify this fault in accordance with the instructions. An open tank vent can lead to the lean limit state.

  Opposed adaptation values in connection with misfires indicate that the timing is out of adjustment.
  
  

  Diagnostic conditions

• Battery positive voltage between 10 V and 16 V
• Lambda control active
• Engine temperature > 60 °C (140 °F)
• Mass air flow between 40 kg/h and 300 kg/h
• Engine load between 17 % and 30 %
• Engine speed between 1200 rpm and 3000 rpm
  
  

  Possible fault causes

• Incorrect main filling signal from hot-film mass air flow sensor (setpoint voltage with stopped engine and ignition on = 0.9 ... 1.1 V)
• Fuel pressure too high
• Mechanical fault of fuel injector(s)
• Mechanical fault of tank vent (stuck open)
• Tank vent driver fault
  
  

  Affected contacts on the DFI control unit connector

  
  
  Connector [B]:
• Contact 85
• Contact 64
  
  

  Affected contacts on the hot-film mass air flow sensor 1 connector

• Contact 5
• Contact 3