Fuel Tank Pressure Sensor
NOTE:
Only component testing procedure is covered. For Fuel Tank Pressure (FTP) sensor system and circuit testing procedure, see appropriate SELF-DIAGNOSTICS article.
NOTE:
For FTP sensor removal and installation, see appropriate FUEL TANK PRESSURE SENSOR under ENGINE SENSORS & SWITCHES in REMOVAL & INSTALLATION article.
Vent fuel tank by removing fuel filler cap. Ensure ignition is off. On Optima & Magentis (Canadian), remove fuel pump access cover in trunk. On Rio, Sedona and Sorento, locate FTP sensor 3-pin harness connector under rear seat, through fuel pump assembly access panel on vehicle floor. Disconnect FTP sensor harness connector. Check resistance between FTP sensor connector terminals. See Fig 1 and FUEL TANK PRESSURE SENSOR RESISTANCE SPECIFICATIONS table. If FTP sensor is not as specified, replace FTP sensor.
FUEL TANK PRESSURE SENSOR RESISTANCE SPECIFICATIONS
| Application | K/ohms | |
|---|---|---|
| Optima & Magentis (Canadian) | ||
| Sensor Terminals 1 & 2 | 5-6 | |
| Sensor Terminals 1 & 3 | 5-6 | |
| Sensor Terminals 2 & 3 | 2.5-3 | |
| Rio, Sedona & Sorento | ||
| Sensor Terminals 1 & 2 | 2.5-3 | |
| Sensor Terminals 1 & 3 | 5-6 | |
| Sensor Terminals 2 & 3 | 5-6 | |