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HOMESERVICE MANUALSKIA2021FORTE EXREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS - 2.0L (4 OF 6)DTC P0506-00: IDLE AIR CONTROL SYSTEM-RPM LOWER THAN EXPECTEDDTC INFORMATIONDTC DETECTING CONDITION
2021 Kia Forte EX

DTC Information: DTC Detecting Condition

2021 Kia Forte EXSECTION DTC Detecting Condition
Item Detecting Condition Possible Cause
DTC Strategy
  • Engine speed is below the target while ISC torque is around the maximum
  • Poor connector connection
  • Restricted intake or exhaust System
  • Vacuum leaks
  • Faulty throttle body
Enable Conditions
  • Vehicle speed = 0 mph
  • ECT greater than 50°C (122°F)
  • Intake air temperature greater than -10.5°C (13.1°F)
  • Accel. Pedal = 0%
  • BARO greater than 74.5 kPa (0.74 bar/10.80 psi)
Threshold Value
  • Difference of target engine speed at actual engine speed is higher than 100 RPM
  • Difference of Max. idle torque at actual idle torque is lower than 10Nm
Diagnostic Time
  • 8s
MIL ON Condition
  • 2 driving cycles
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.