2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 552
- Fuel high-pressure average permanent > 135 bar
INFORMATION
- See Extended fault memory
-->Environmental condition 4 for first fault occurrence (Fuel high-pressure actual value value)
-->Environmental condition 5 for first fault occurrence (Fuel high-pressure Nominal value)
Conversion:
- 10,000 hPa = 10 bar = 10,000 mbar
- 1000 kPa = 10 bar = 10,000 mbar
- 1MPa = 10 bar = 10,000 mbar
P1027
P1027
Diagnosis information - Control unit DME (DFI)
Fuel high-pressure fluctuates
Diagnostic conditions
- Engine speed 450 ... 4,000 1/min
- Engine temperature -10 ... +100 锟斤拷C (锟斤拷F)
- Trip with different operating conditions
Possible fault causes
- Loose contact or corrosion on connectors or lines > Fuel high-pressure sensor
- Quantity control valve stiff (in Fuel high-pressure pump)
Fault setting condition(s)
- The fuel high pressure fluctuates by +/- 25 bar from the setpoint fuel pressure.
P1030
P1030
Diagnosis information - Control unit DME (DFI)
Fuel high-pressure sensor stuck (stuck)
INFORMATION
- Faults in the fuel high-pressure injection system are often caused by defects in the pre-delivery system (fuel low pressure).
- Therefore, if there are problems in the fuel high-pressure injection area, the predelivery circuit must be checked first.
Diagnostic conditions
- Engine running (Driving)
- Engine temperature -10 ... +100 锟斤拷C (锟斤拷F)
Possible fault causes
- Pre-delivery quantity or pressure in fuel low-pressure circuit too low
- Fuel high-pressure sensor Faulty
Fault setting condition(s)
- no change in the voltage line Fuel high-pressure sensor, at:
- Engine running
P1031
P1031
Diagnosis information - Control unit DME (DFI)
Fuel high-pressure sensor stuck (stuck) in the Engine start
INFORMATION
- Faults in the fuel high-pressure injection system are often caused by defects in the pre-delivery system (fuel low pressure).
- Therefore, if there are problems in the fuel high-pressure injection area, the predelivery circuit must be checked first.
Diagnostic conditions
- Engine start
- Engine temperature -10 ... +100 锟斤拷C (锟斤拷F)
Possible fault causes
- Pre-delivery quantity or pressure in fuel low-pressure circuit too low
- Fuel high-pressure sensor Faulty
