SAAB WIS ONLINE

P1107

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE. Engine speed drops slower than normal when the accelerator is released.

P1107


Charge Air Absolute Pressure Sensor Circuit. Short to Ground / Open.


Fault symptoms


CHECK ENGINE.

Engine speed drops slower than normal when the accelerator 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.


Fault criteria:


- Voltage below 0.185 V for more than 10 s.


Dependents:


- None.


System reaction to a fault:


- Density compensation of the throttle angle is blocked. The charge air adaptation is blocked and zeroed, the atmospheric pressure sensor is used as a substitute value.


OK report:


- Fault criteria for P1106, P1107 or P1108 not fulfilled.


Fault handling: (See section “Fault diagnosis, general” for more information.)


- Type III.


Diagnostic help

Fault diagnosis concerns electrical faults in connected leads or in the sensor.

Diagnostic tool functions related to this fault are:


Pressure sensor reading, in kPa.


With the engine switched off, the reading should correspond with those of the other two pressure sensors. Permissible difference is 10 kPa.

See also the description of test values under ”Fault diagnosis, general” for more information.

Check the wiring

Jiggle the leads and in-line connectors at various points and in different directions to detect any intermittent breaks or short circuits in the wiring. Observe the multimeter, test lamp or diagnostic tool while doing this.