2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 553
Fault setting condition(s)
- no change in the voltage line Fuel high-pressure sensor, at:
- Engine start
P1069
P1069
Diagnosis information - Control unit DME (DFI)
Mass air flow implausible too high (Leakage adaptation)
Diagnostic conditions
- Idle speed > 2 Minute(s)
- Trip with different operating conditions
- none of the following faults stored : Intake manifold pressure sensor, Throttle adjusting unit, Ambient pressure sensor, Intake air temperature
sensor, Speed sensor, Valve lift control, Camshaft adjustment, Intake pipe switchover
Possible fault causes
- Oil filler cap leaks
- Positive crankcase ventilation hose leaks (See [Information 1])
- Intake system leaks - between Throttle valve and Engine (Intake valve)
- Tank vent Faulty - Closed
- Intake manifold pressure sensor - Electrical plug connection loose, oxidized, corroded, interrupted
- Fault in area Intake manifold pressure sensor, Throttle adjusting unit, Ambient pressure sensor, Intake air temperature sensor, Speed sensor,
Valve lift control, Camshaft adjustment, Intake pipe switchover
Fault setting condition(s)
- Impermissibly large deviation of the measured air mass from the calculated air mass., at:
- Increasing deviation over an extended period (See [Information 2])
INFORMATION
1. - only Turbo
The following components are NOT tested during an overpressure test of the intake duct:
- Check valve for ventilation (Intake distributor)
- Check valve for ventilation (Suction hose Turbocharger)
- Positive crankcase ventilation hose between Check valve for ventilation and Crankcase
- Crankcase
2. In this diagnosis, the intake system between the throttle valve and the engine (intake valves) is monitored.
- A mass air flow is calculated from the signals from the throttle potentiometer, engine speed sensor, intake air temperature sensor and
ambient pressure sensor as well as other engine operating values.
- The calculated mass air flow is compared with that measured by the pressure sensor.
- A deviation may be due to both the calculated mass air flow and the measured mass air flow.
P1070
P1070
Diagnosis information - Control unit DME (DFI)
Mass air flow, implausible too low (Leakage adaptation)
Diagnostic conditions
- Idle speed > 2 Minute(s)
- Trip with different operating conditions
- none of the following faults stored : Intake manifold pressure sensor, Throttle adjusting unit, Ambient pressure sensor, Intake air temperature
sensor, Speed sensor, Valve lift control, Camshaft adjustment, Intake pipe switchover
Possible fault causes
- Throttle adjusting unit soiled
- Exhaust system Blocked / Cross section Narrowed
- Intake manifold pressure sensor - Electrical plug connection loose, oxidized, corroded, interrupted
- Tank vent Faulty (mechanical / electric)
- Fault in area Intake manifold pressure sensor, Throttle adjusting unit, Ambient pressure sensor, Intake air temperature sensor, Speed sensor,
Valve lift control, Camshaft adjustment, Intake pipe switchover
Fault setting condition(s)
- Impermissibly large deviation of the measured air mass from the calculated air mass., at:
- Increasing deviation over an extended period (See [Information])
