The absolute air pressure sensor in the intake manifold is removed for replacement. Removing the engine cover (see Checking the condition and replacing spark plugs).
With the ignition off..
... by depressing the latch of the block of the wiring harness of the engine management system, we disconnect the block from the absolute pressure sensor.
With a "10" spanner, unscrew the bolt securing the sensor to the intake manifold.
We disconnect the vacuum supply pipe from the intake manifold from the sensor fitting.
Install the absolute air pressure sensor in the intake manifold in reverse order.