Diagnostic Aids
WARNING: This page is about a different car, the 2006 Suzuki Reno and 2006 Suzuki Forenza. However, it is still accessible from the selected car via links, so may be relevant.
Inaccurate readings will occur if resistance measurements are taken on a fuel tank pressure sensor. The fuel tank pressure sensor contains an internal amplifier circuit that requires applied voltage to function properly. The FTP sensor on the scan tool should be between 2.35 - 2.85 V with the ignition ON and the engine OFF and the fuel cap removed. This represents atmospheric pressure or 0 inches of vacuum.