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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1045 (Engine Controls And Fuel - 4.3L - DTC P0016 To DTC P0336) >> DTC P0068 or P0121 >> Conditions for Setting the DTC >> P0121

Conditions for Setting the DTC: P0121

WARNING: This page is about a different car, the 2008 GMC Sierra and 2008 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The predicted air flow and the predicted MAP combined are outside a calibrated range for more than 3 seconds.

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