DTC Set Criteria

DTC will set if EGR solenoid is turned on and intake manifold pressure fluctuation width is less than .37 psi (2.6 kPa). This will happen when engine coolant temperature is more than 169°F (76°C). Engine speed is 910-1650 RPM. Intake air temperature is more than 32°F (0°C). Atmospheric pressure is more than 11 psi (76 kPa). Closed throttle position switch is on. Volumetric efficiency is less than 28 percent. Monitor runs 3 times for 2 seconds each time.