Conditions for Setting the DTC
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects a temperature difference of greater than 10°C (50°F) between EGR temperature sensors 1 and 2.
- This DTC runs once per key cycle when the above condition is met.