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Home >> Kia >> 2022 >> Carnival EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (4 Of 8) >> DTC P0402-00: Exhaust Gas Recirculation Flow Excessive Detected >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • EGR gas flow monitor
  • Poor connector connection
  • Intake manifold leakage
  • EGR cooler stuck
  • EGR circulation line stuck or leakage
Enable Condition
  • Fuel cut off condition
  • Intake air temperature is higher than -6.75°C (44.15°F)
  • Engine coolant temperature is higher than 56°C (132.8°F)
  • Ambient temperature is higher than -13°C (8.6°F)
  • Engine speed is between 992 and 2016 RPM
  • Engine speed gradient is between -192 and 192 RPM/s
  • Barometric pressure is greater than 75 kPa
  • Battery voltage is between 10 and 16V
  • Throttle position is between 0 and 8 degrees
Threshold Value
  • MAP difference between EGR valve open and closed is below 0.72
Diagnostic Time
  • 0.02s
MIL ON Condition
  • 2 driving cycles