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Manifold absolute pressure sensor (431)

Manifold absolute pressure sensor (431)



Location



On intake manifold

Power supply

V

5

Voltage at:





25 kPa (-0.75 bar)

V

approx. 0.9

50 kPa (-0.50 bar)

V

approx. 1.3

100 kPa (±0 bar)

V

approx. 2.1

125 kPa (0.25 bar)

V

approx. 2.5

150 kPa (0.50 bar)

V

approx. 2.9

175 kPa (0.75 bar)

V

approx. 3.3



Pressure given in kPa refers to absolute pressure, i.e. 100 kPa corresponds to barometric pressure at sea level.

When checking the pressure sensor with a pressure/vacuum pump, slightly lower voltages may be obtained at high altitudes.