Manifold absolute pressure sensor (431)
PRESSURE SENSOR DESCRIPTION
| 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.