Malfunction Threshold
The output from the fuel tank pressure sensor is -4 kPa (-1.0 in.Hg, -25 mmHg)*, -2 kPa (-0.4 in.Hg, -10 mmHg)** or less for at least 1.04*, 8** seconds.
*: Elapsed time after the FTP sensor output exceeds the malfunction threshold.
**: Excessive negative pressure is detected.