Manifold absolute pressure sensor (431)
WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
TECHNICAL DATA - MANIFOLD ABSOLUTE PRESSURE SENSOR
| Location | On stay between upper MacPherson strut attachment points | |
| Power supply, pin B | V | 5 |
| Ground, pin A | ||
| Voltage at | Pin C | |
| 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 specified in kPa refers to absolute pressure, i.e. 100 kPa corresponds to atmospheric pressure at sea level.
When checking the pressure sensor with a pressure/vacuum pump, slightly lower voltages may be obtained at high altitudes.