Pinpoint Test C: DTC P1450 Excessive Vacuum Detected In The Fuel Tank

NOTE: Condition P1450 DTC set: More than -1.79 kPa (-7.2 inches H₂ O) over 30 seconds.

Fig 1: Pinpoint Test C: DTC P1450 Excessive Vacuum Detected In Fuel Tank (Step C1 To C4)

Courtesy of FORD MOTOR CO.

Fig 2: Pinpoint Test C: DTC P1450 Excessive Vacuum Detected In Fuel Tank (Step C5)

Courtesy of FORD MOTOR CO.