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Home >> Chevrolet >> 2006 >> HHR LT, 2.2 D, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.2L - DTC P0449 To P1516 >> DTC P1400 >> Circuit/System Verification
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Circuit/System Verification

Allow the engine to cool. Monitor the Cold Startup parameter, this should indicate Yes. Start and idle the engine for at least 2 minutes. DTC P1400 should run and pass.