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Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.7L - DTC P0324 To DTC P0446 >> DTC P0446 >> Conditions for Setting the DTC

Conditions for Setting the DTC

The FTP sensor is more than 12 inches H2O vacuum for 5 seconds.
OR
The FTP is less than -2.5 inches H2O or more than +5 inches H2O for 60 seconds after a cold start.

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