Fuel Tank Pressure Sensor
WARNING: This page is about a different car, the 1996 Suzuki Swift. However, it is still accessible from the selected car via links, so may be relevant.
Remove tank pressure sensor. Connect three 1.5 volt batteries in series. Connect positive terminal to "Vin" terminal of tank pressure sensor. See Fig 1 . Connect negative terminal to "Ground" terminal. Using a voltmeter, measure voltage between terminals "Vout" and "Ground". Connect a hand-held vacuum pump to tank pressure sensor. As vacuum is applied, voltage reading should decrease. Refer to the FUEL TANK PRESSURE SENSOR VOLTAGE table. If reading is not as specified, replace tank pressure sensor.
FUEL TANK PRESSURE SENSOR VOLTAGE
| Applied Vacuum: In. Hg (mm Hg) | Output Voltage |
|---|---|
| 0 (0) | 2.00-2.75 |
| 2 (50) | 0.20-0.75 |