Typical Malfunction Thresholds

Purge VSV stuck open


FTP when vacuum introduction complete

Higher than reference pressure x 0.2

Purge VSV stuck closed


FTP change for 10 seconds after purge VSV ON (open)

Less than 0.3 kPa (2.25 mmHg)

"Saturated" indicates that the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) in 30 seconds.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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