Conditions for Setting the DTC: P0402
WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
The ECM detects excessive EGR flow due to the EGR valve pintle being open greater than 55 percent during crank.