0281002401 Bosch (VAG 038 906 051 C) 3 bar MAP sensor with combined MAT sensor available new from Webshop https://shop.vems.hu/catalog/boost-p-80.html or plenty available these days second hand.

*Not a unique or special sensor (difficult to source)

*Available from high street dealers (easy to source)

*OEM reliability and durability

*Standard temperature sensor scaling

Connector is smaller than the 4 pin COP connector

*VW part number for connector 1J0973704

*Audi part number 4819035

Pin Out for sensor

*1 - Ground

*2 - MAT

*3 - 5v

*4 - MAP

Design Notes

*The piezoresistive pressure-sensor element and suitable electronic circuitry for signal amplification and temperature compensation are mounted on a silicon chip. The measured pressure is applied from above to the diaphragm’s active surface. A reference vacuum is enclosed between the rear side and the glass base. Thanks to a special coating, both pressure sensor and temperature sensor are insensitive to the gases and liquids which are present in the intake manifold.

Installation notes

*The sensor is designed for mounting on a horizontal surface of the vehicle’s intake manifold. The pressure fitting together with the temperature sensor extend into the manifold and are sealed-off to atmosphere by O-rings. By correct mounting in the vehicle (pressure-monitoring point on the top at the intake manifold, pressure fitting pointing downwards etc.) it is to be ensured that condensate does not collect in the pressure cell.

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