With the ignition off..
... by depressing the retainer of the engine management wiring harness block..
... disconnect the wiring harness block from the absolute pressure sensor.
We disconnect the vacuum supply pipe from the intake manifold from the sensor fitting.
With the "10" head, we unscrew the bolt securing the sensor bracket to the front panel..
... and remove the sensor assembly with the bracket.
With a "10" head, we unscrew the nut of the sensor mounting bolt to the bracket, holding the bolt from turning with a wrench of the same size.
Having unscrewed the nut of the other bolt in the same way, we take out the bolts..
... and remove the sensor from the bracket.
Install the intake manifold absolute pressure sensor in reverse order.
Checking the intake manifold absolute pressure sensor is shown in the section Troubleshooting.