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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 2.0L (LSY) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P04DB, P04E2, P04E3, or P04FB >> Diagnostic Aids

Diagnostic Aids

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Certain engine mechanical conditions may cause excess oil to accumulate in the cam cover area near the sensor. If this condition exists, excess oil may momentarily restrict the passage to the sensor which may cause P04DB to set.

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