Conditions for Running the DTC: P0134

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0068, P0101, P0102, P0103, P0120, P0121, P0122, P0123, P0220, P0222, P0223, P1516, P2101, P2119, P2135, P2176 are not set.
The Engine Coolant Temperature (ECT) Sensor parameter is more than 70°C (158°F).
The Ignition 1 Signal parameter is between 10-18 V.
The engine run time is more than 200 seconds.
The fuel composition is less than 87 percent ethanol.
DTC P0134 runs continuously when the above conditions are met.