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Home >> Kia >> 2024 >> Niro Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control/Fuel System - General Information (PHEV) >> Troubleshooting >> Basic Troubleshooting Guide >> Symptom Troubleshooting Guide Chart >> Hard To Start

Hard To Start

Inspection Procedure Possible Cause
  1. Auxiliary battery
  2. Inspect fuel pressure
  3. Inspect ignition system
  4. Inspect Engine Coolant Temperature Sensor (ECTS) and circuit (Check the DTC)
  • Check the DTC
  • Low fuel pressure
  • Intake air leakage
  • Contaminated fuel
  • Weak sparks when ignited
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