Conditions for Running the DTC: P167D

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The engine is operating.
The engine speed is less than 5,000 RPM.
The ignition voltage is between 9-18 volts.
DTC P167D runs continuously once the conditions above are met.