Conditions for Running the DTC
WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Condition 1
- DTC P0116, P0117, P0118, or P0119 is not set.
- The engine speed is greater than 25 RPM.
- DTC P0128 runs continuously when the above conditions have been met for approximately 8 minutes.
Condition 2
- Before the ECM can report DTC P0128 failed, DTC P0118 must run and pass.
- DTC P0100, P0101, P0102, P0103, P0111, P0112, P0113, P0116, P0117, P0118, P0119, or P0700 is not set.
- The engine speed is greater than 960 RPM.
- The ECT is less than 71°C (160°F) at start up.
- The calculated ambient air temperature is between -30 to +70°C (-22 to +158°F).
- The vehicle speed is greater than 15 km/h (9 mph).
- The air flow coming into the engine has accumulated to greater than 3,000 grams.
- DTC P0128 runs continuously when the above conditions have been met for approximately 15 minutes.