MAP Sensor Individual Check

MAP Sensor Individual Check
1. Disconnect coupler from MAP sensor.
2. Remove MAP sensor.
3. Arrange 3 new 1.5 V batteries in series (check that total voltage is 4.5 - 5.0 V) and connect its positive terminal to "Vin" terminal of sensor and negative terminal to "Ground" terminal. Then check voltage between "Vout" and "Ground".
Also, check if voltage reduces when vacuum is applied up to 400 mm Hg by using vacuum pump.
If check result is not satisfactory, replace MAP sensor.
4. Install MAP sensor securely.
5. Connect MAP sensor coupler securely.