T8 / P0106 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Cruise control not working.
Limp home
The engine speed drops more slowly than usual when the accelerator is released.
Manifold Absolute Pressure Sensor Circuit. Performance Problem.
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Cruise control not working.
Limp home
The engine speed drops more slowly than usual when the accelerator is released.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| General conditions for this DTC |
| • | Battery voltage must be between 11 - 16 V. |
| Test 1 (only vehicles with atmospheric pressure sensor mounted) |
| • | NONE of the following DTCs must be detected: P0107, P0108, P0237, P0238, P2228 and P2229. |
| • | The conditions above must be fulfilled for more than 3 s, after which the engine must be running for the diagnosis to finally run. |
| • | Accelerator pedal released |
| • | Engine speed higher than 1300 rpm |
| • | Engine load lower than 110 mg/c. |
| • | NONE of the following DTCs must be detected: P0107, P0108. |
Fault criteria:
| • | Absolute pressure sensor value differs more than 15 kPa from atmospheric pressure sensor and charge air absolute pressure sensor. |
| • | Absolute pressure sensor value exceeds 50 kPa. |
Dependent:
System reaction to a fault:
| Torque limited to max. 170Nm. |
| Boost pressure adaption is blocked and reset. |
| Correction of mass air flow/combustion for fuel calculation is blocked. |
| Limited acceleration and idle function. |
| Secondary air pump not active, if fitted. |
OK report:
| Test 1 and Test 2 completed once and fault criteria not fulfilled. |
Fault handling:
| (See section Fault handling III, "Other emission-related components and functions" for more information.) |
Diagnostic help
Diagnosis regards:
| Electrical fault in the component. |
| Air leak between the throttle and inlet valves or an incorrectly adjusted intake cam. |
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| • | The DTC may also be generated if the camshafts are incorrectly adjusted. |
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| The signal is compared with the other pressure sensors when the ignition is on and the engine not started. The value must be close to the other values. |
| In the event of a rapid release of the accelerator pedal, the intake pressure is checked to ensure that it is below 50 kPa. |
Functions in the diagnostic tool related to the fault:
| • | Absolute pressure sensor, charge air |
| • | Manifold absolute pressure sensor |
| • | Atmosphere Absoslute Pressure |
| (See also description of readings/activations in diagnostic tool) |
