Checking the pressure sensors
- Ignition on
- Read off both the pressure in the intake manifold and the atmospheric pressure
- Compare the read off values. The difference between these values must not be greater than 70 hPa.
If the difference between the read off pressure values is less than 70 hPa, the cause of the fault was loose connections in the connector.
If the difference is in excess of 70 hPa, check which of the sensors probably gave an incorrect value.
Other information
- To locate the pressure sensors, see Location of components
- Normal atmospheric pressure is 1013 hPa.
Select an alternative
- The difference between the read off pressure values is < 70 hPa
Refer to Checking the connectors
- The atmospheric pressure sensor seems to be faulty
- The manifold absolute pressure (MAP) sensor seems to be faulty.
Refer to Replacing the manifold absolute pressure (MAP) sensor