Conditions for Setting the DTC
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- The actual system pressure at the shutoff/check valve is at least 4.5 kPa (0.7 psi) greater or 7.5 kPa (1.1 psi) less than the predicted system pressure for greater than 7 s.
OR
- The difference between the predicted magnitude of pressure pulsations and the actual magnitude of pressure pulsations, at the shutoff/check valve over a specific length of time, exceeds a calibrated threshold.