Conditions For Running DTC
- Accumulated air mass is more than 0.5 kg.
- The EGR valve is commanded to 60 percent duty cycle.
- The engine speed is between 1600-2200 RPM and is steady.
- Engine load is between 35-65 percent.
- Altitude is less than 9,023 feet (2750 meters).
- The EGR flow test can take between 4-9 seconds to run.