Fault Conditions

Charge Air Absolute Pressure Sensor. Hose leakage







Fault symptoms
- CHECK ENGINE.
- Engine speed drops slower than normal when accelerator pedal is released.

On-Board Diagnostics
Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria:
- Engine running. Engine speed exceeding 1500 rpm. Intake manifold pressure exceeding a value that is 5 kPa lower than atmospheric pressure.

Fault criteria:
- Charge air pressure below a value 5 kPa higher than atmospheric pressure. Criteria fulfilled for more than 3 s.

Dependents:
- P0106, P0107, P0108, P1106, P1107, P1108, P1631, P1632, P1633 and P1641.

System reaction to a fault:
- Density compensation of the throttle angle is blocked.

OK report:
- Charge air pressure exceeds atmospheric pressure by more than 5kPa on one separate occasion during the driving cycle

Fault handling: Fault Handling III, Other Emission-Related Component & Function
- Type III.

Diagnostic help
Fault diagnosis concerns a leak in the hose to the sensor or between the compressor and the throttle body.
Functions in the diagnostic tool related to the fault:
- Diagnostic status for the diagnosis.
- Pressure sensor value, unit kPa.

During acceleration, the value should exceed the value for the two other pressure sensors.
For information, Tech 2 Menu Structure, DTC Menu, Read Value, Activate, Sys Info

Proceed to Diagnostic Procedures Checking the Hose