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Home › Saab › 2006 › 9-7X 4.2i › Repair and Diagnosis › Engine Performance › System › Engine Controls - 4.2L - DTC P0135 To P0443 › DTC P0442 › Conditions For Setting The DTC

Conditions For Setting The DTC

The control module detects a pressure change that is less than a calibrated amount.
Several tests must be completed to report a Fail with up to 17 hours between tests.