Code Enable Criteria

Conditions for running DTC:

• Barometric pressure is greater than or equal to 75 kPa.
• Engine coolant temperature is 158-230°F (70-110°C).
• Intake air temperature is greater than 18°F (-8°C).
• Vehicle speed is 30-40 MPH.
• Engine speed is 2000-3000 RPM for 3 minutes.

Conditions for setting DTC:

• Difference in intake manifold pressure when EGR is open and when EGR is closed is less than specified value.