1. Within 0.1 s after the ignition is switched on, the pressure in the intake manifold is less than 118 mbar.
2. When the crankshaft speed is below 1980 min-1, the pressure in the intake pipe is less than 118 mbar.
3. With the accelerator pedal released, the pressure in the intake manifold is at least 986 mbar, and the crankshaft speed is at least 2400 min-1 (as if the car were driving down a slope).
Examination
Pic. 2.239. Absolute pressure sensor connector
Check voltage at terminals 1 and 4 of the MAP sensor electrical connector (pic. 2.239).
Conclusion 4: «weight» absolute pressure sensor.
Pin 1: Absolute pressure sensor output.
If the voltage deviates from the norm, replace the absolute pressure sensor.