Technical Ambient air pressure sensor

[eiger]

Hi
Im working on clearing errors on my 2008 Ducato 3.0 with F1CE0481D engine.
Using MES and checking the parameters, I realized that pressures(boost, differential, ambient) indicate about negative 3000mbar.
I think those are not the normal numbers.
I want to fix it from ambient pressure. Because I definitely know it should indicate 1013mbar. However, even reading the e-learn thoroughly, can’t find where the ambient pressure is measured. Can’t find any sensors or any thing to measure it.
Does anyone know what is measuring ambient air pressure??

 

[Communicator]

My 2006 2.8jtd uses a Bosch ECU, that contains an ambient air pressure sensor. I think that the Bosch ECU used on the 3.0 multijet, will contain a similar sensor. The sensor is mentioned in the x244 eLearn. See below.

BOSCH EDC 15C7 ENGINE CONTROL UNIT​

The EDC 15C7 processes signals from the sensors by applying software algorithms and controls actuators (particularly the injectors and pressure regulator) to achieve the most effective possible engine operation.The control unit is flash E.P.R.O.M. type and can be reprogrammed externally without the need to adjust the hardware.The engine control unit contains a built-in atmospheric pressure sensor and is connected to the wiring by means of 2 connectors that provide a total of 121 pins.

 

[eiger]

My 2006 2.8jtd uses a Bosch ECU, that contains an ambient air pressure sensor. I think that the Bosch ECU used on the 3.0 multijet, will contain a similar sensor. The sensor is mentioned in the x244 eLearn. See below.

BOSCH EDC 15C7 ENGINE CONTROL UNIT​

The EDC 15C7 processes signals from the sensors by applying software algorithms and controls actuators (particularly the injectors and pressure regulator) to achieve the most effective possible engine operation.The control unit is flash E.P.R.O.M. type and can be reprogrammed externally without the need to adjust the hardware.The engine control unit contains a built-in atmospheric pressure sensor and is connected to the wiring by means of 2 connectors that provide a total of 121 pins.

Thanks!!
I found the explanation on MES parameters. I’ll check the e-learn more thoroughly.
Now I can get working on my ECU. Seems it will solve all the problems!!!
Really appreciate your knowledge.