2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 420
- Oxygen sensor(s) Faulty
- Exhaust system Narrowed / Blocked
- Catalytic converter Faulty
- Intake distributor leaks
- Foreign bodies in the Intake distributor
- Fault Camshaft adjustment
- Timing incorrect - Exhaust camshaft
- Fault Valve lift control
- Valve lifter Faulty
(Intake valve has not switched to the other lift or has not switched quickly enough)
- Mechanical fault Valve drive
- Compression too low
(e.g. Cylinder lining damaged, Valve-seat ring Faulty ...)
Fault setting condition(s) (See [Information])
- Diagnosis detects uneven running for the specified cylinder.
- Uneven running is calculated from the expected and actual crankshaft acceleration due to combustion.
- Uneven running is interpreted as a misfire or valve lift fault, depending on type.
INFORMATION
- It is possible that only one cylinder (or the cylinders of one bank) has/have exceeded the uneven running threshold for a fault entry.
- Other cylinders may be just below the level which would result in a fault entry.
- See Actual values:
- [M005_Rough running ...] ... [M080_Rough running ...]
P0308
]P0308
Diagnosis information - Control unit DME (DFI)
Misfires
Diagnostic conditions
- Engine temperature > -20 锟斤拷C (锟斤拷F)
- idle speed up to the red range on the tachometer
- without Overrun phase(s)
- none of the following faults stored: P0335, P0336, P0371, P0373
Possible fault causes
INFORMATION
See also Workshop Manual - 0 Entire vehicle - General - 08 Symptoms - 0820IN.
- Influence by engine-block heater
- Loose contact or corrosion on connectors or lines
- Power or ground supply faulty
- Spark plug(s) oiled due to oil entrainment in the cylinder
- Spark plug(s) incorrect
- Spark plug(s) Mechanical fault or Electrical fault
- Bar ignition module Faulty
- Power or ground supply faulty
- Fuel quality incorrect
- Fuel tank empty
- Water in the Fuel tank
- Fuel line soiled / Blocked
- Electric fuel pump Mechanical fault
- Fuel high-pressure pump Mechanical fault
- Injection valve Faulty or Borderline
(opens too late / not long enough / not enough or leaks)
- Oxygen sensor(s) Faulty
- Exhaust system Narrowed / Blocked
- Catalytic converter Faulty
- Intake distributor leaks
- Foreign bodies in the Intake distributor
- Fault Camshaft adjustment
- Timing incorrect - Exhaust camshaft
- Fault Valve lift control
