Fault Conditions

P0106

Manifold Absolute Pressure Sensor Circuit. Performance Problem.







Fault symptoms
- CHECK ENGINE.
- Engine speed drops slower than normal when accelerator pedal is released.
- Misfiring can occur before trouble code is generated.

On-Board Diagnostics

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

Enable criteria:
- General condition for this diagnostic trouble code: Atmospheric pressure must exceed 72 kPa as well as coolant and intake air temperature must exceed -7 degree C.
- Test 1: Crankshaft stationary, even after ignition OFF. Car stationary. The difference in pressure between the other two absolute pressure sensors in the system less than 10 kPa.
- Test 2: Engine running. Engine speed above 1300 rpm. Engine load lower than 110 mg/c. Accelerator pedal fully released.

Fault criteria:
- Test 1: Sensor value differs more than 15 kPa from atmosphere absolute pressure sensor.
- Test 2: Sensor value exceeds 50 kPa.

Dependents:
- P0336 and P0337.

System reaction to a fault:
- Purging blocked. Correction of air mass/combustion for fuel calculation blocked.
- Charge air adaptation blocked and zeroed.

OK report:
- Test 1 and Test 2 performed once and fault criteria not fulfilled. Fault criteria for P0107 or P0108 not fulfilled.

Fault handling: (For more information, Fault Handling III, Other Emission-Related Components and Function)

- Type III.

Diagnostic help
Fault diagnosis concerns sensor fault. A very large vacuum leak can generate this diagnostic trouble code.

Functions in the diagnostic tool related to the fault:
- Pressure sensor value, unit kPa. The value should correspond with the other two pressure sensors when the engine is stationary. Accepted difference is 10 kPa.

For more information, refer to scan tool testing. Menu Read Values

Proceed to Diagnostic Procedures Checking Air Leakage