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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P0016 - P049D)) >> Diagnostic Information And Procedures >> DTC P0401 Or P0402: Exhaust Gas Recirculation (EGR) Flow Insufficient/Excessive >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P0401 

The ECM detects that the difference between the actual mass air flow and the desired mass air flow is less than a calibrated value for greater than 10 s.

P0402 

The ECM detects that the difference between the actual mass air flow and the desired mass air flow is greater than a calibrated value for greater than 10 s.

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