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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P205B - P2BAA) And Symptoms) >> Diagnostic Information And Procedures >> DTC P20EE, P249D, Or P249E: NOx Catalyst Efficiency Below Threshold/Closed Loop Reductant Injection Control At Limit - Flow Too Low/High >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The selective catalytic reduction measured NOx conversion efficiency is lower than expected.