Engine Control / Engine Mechanical - Testing & Troubleshooting

• Removal, Installation And Inspection
  • Camshaft and VTC Actuator Removal, Installation, and Inspection (K20C1) (2017 2018 2019 2020 2021)
    • Removal
      • Notes
      • Procedure
    • Installation
      • Notes
      • Procedure
    • Inspection
  • Camshaft and VTC Actuator Removal, Installation, and Inspection (K20C2)
    • Removal
    • Inspection
    • Installation
  • Crankshaft and CKP Pulse Plate Removal, Installation, and Inspection (1.5L Engine)
    • Notes
    • Removal
    • Inspection
    • Installation
  • Crankshaft and CKP Pulse Plate Removal, Installation, and Inspection (K20C1) (2017 2018 2019 2020 2021)
    • Removal
      • Notes
      • Procedure
    • Installation
      • Notes
      • Procedure
    • Inspection
  • Crankshaft and CKP Pulse Plate Removal, Installation, and Inspection (K20C2)
    • Notes
    • Removal
    • Inspection
    • Installation
  • EVAP Canister Purge Valve Removal, Installation, and Inspection (L15B7/L15BA/L15BY)
    • Removal and Installation
      • Notes
      • Procedure
    • Inspection
• Description & Operation
  • Catalytic Converter System Description - Overview
  • EVAP System Description (EX, EX-T, EX-L)
  • Electronic Throttle Control System Description
  • PCV System Description - Overview
  • PGM-FI System Description - Components (K20C2: USA/Canada models)
  • PGM-FI System Description - Components (USA/Canada models Type-R) (2017 2018 2019 2020 2021)
  • PGM-FI System Description - Components (L15B7/L15BA: USA/Canada models)
  • PGM-FI System Description - Electronic Control (Except Type-R)
  • PGM-FI System Description - Electronic Control (Type-R) (2017 2018 2019 2020 2021)
  • PGM-FI System Description - Ignition Timing Control
  • PGM-FI System Description - Injection Control
  • PGM-FI System Description - On-Board Snapshot
  • PGM-FI System Description - REV Match System (Type-R) (2017 2018 2019 2020 2021)
  • Turbocharger Control System Description - Control (With Turbocharger)
  • VTEC/VTC System Description - VTC (L15B7/L15BA)
  • VTEC/VTC System Description - VTEC (K20C2)
  • VTEC/VTC System Description (Type-R) (2017 2018 2019 2020 2021)
• Symptom Troubleshooting Index for Viewer
  • After warming up, idle speed is above specifications without load (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • After warming up, idle speed is above specifications without load (MIL works OK, no DTCs set) (L15B7/L15BA: USA/Canada models)
  • After warming up, idle speed is below specifications without load (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • After warming up, idle speed is below specifications without load (MIL works OK, no DTCs set) (L15B7/L15BA: USA/Canada models)
  • Cold fast idle too high (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Cold fast idle too high (MIL works OK, no DTCs set) (With XM)
  • Cold fast idle too low (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Cold fast idle too low (MIL works OK, no DTCs set) (L15B7/L15BA: USA/Canada models)
  • Difficult to refuel (MIL works OK, NO DTCs set) (With XM)
  • Difficult to refuel (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Engine abnormal noise while fuel cut-off control (With Turbocharger)
  • Engine is hard to start (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Engine is hard to start (MIL works OK, no DTCs set) (L15B7/L15BA: USA/Canada models)
  • Engine low power (With Turbocharger)
  • Engine stalls (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Engine stalls (MIL works OK, no DTCs set) (With XM)
  • Engine starts but stalls immediately (MIL works OK, no DTCs set, security indicator stays on or flashes) (K20C2: USA/Canada models)
  • Engine starts but stalls immediately (MIL works OK, no DTCs set, security indicator stays on or flashes) (L15B7/L15BA: USA/Canada models)
  • Engine will not start (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Engine will not start (MIL works OK, no DTCs set) (With XM)
  • Engine will not start (MIL works OK, no DTCs set, security indicator stays on or flashes) (K20C2: USA/Canada models)
  • Engine will not start (MIL works OK, no DTCs set, security indicator stays on or flashes) (L15B7/L15BA: USA/Canada models)
  • Engine will not start and HDS does not communicate with the PCM (MIL comes on and stays on, no DTCs set) (K20C2: USA/Canada models)
  • Engine will not start and HDS does not communicate with the PCM (MIL comes on and stays on, no DTCs set) (L15B7/L15BA: USA/Canada models)
  • HDS does not communicate with the PCM or the vehicle (K20C2: USA/Canada models)
  • HDS does not communicate with the PCM or the vehicle (L15B7/L15BA: USA/Canada models)
  • Idle speed fluctuates (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Idle speed fluctuates (MIL works OK, no DTCs set) (L15B7/L15BA: USA/Canada models)
  • Low power (MIL works OK, no DTCs set) (K20C2: USA/Canada models)
  • Low power (MIL works OK, no DTCs set) (L15B7/L15BA: USA/Canada models)
  • MIL comes on and stays on, or never comes on at all, no DTCs set (K20C2, USA/Canada models)
  • MIL comes on and stays on, or never comes on at all, no DTCs set (L15B7/L15BA: USA/Canada models)
• Troubleshooting
  • A/C Signal Circuit Troubleshooting (K20C2)
  • A/C Signal Circuit Troubleshooting (L15B7/L15BA)
  • MIL Circuit Troubleshooting (K20C1) (2017 2018 2019 2020 2021)
  • MIL Circuit Troubleshooting (K20C2)
  • MIL Circuit Troubleshooting (L15B7/L15BA/L15BY)
  • PCM Power and Ground Circuit Troubleshooting (K20C1) (2017 2018 2019 2020 2021)
  • PCM Power and Ground Circuit Troubleshooting (K20C2)
  • PCM Power and Ground Circuit Troubleshooting (L15B7)
  • PCM Power and Ground Circuit Troubleshooting (L15BA) (2017 2018 2019 2020 2021)
  • PCM Power and Ground Circuit Troubleshooting (L15BY) (2018 2019 2020)
• Service Procedure
  • Liquid Gasket Applying Procedure (1.5L Engine)
    • Procedure
  • Liquid Gasket Applying Procedure (K20C1) (2017 2018 2019 2020 2021)
    • Procedure
  • Liquid Gasket Applying Procedure (K20C2)
    • Procedure
  • Rocker Arm and Shaft Disassembly, Reassembly, and Inspection (1.5L Engine)
    • Disassembly and Reassembly
    • Inspection
  • Rocker Arm and Shaft Disassembly, Reassembly, and Inspection (K20C1) (2017 2018 2019 2020 2021)
    • Disassembly
      • Notes
      • Procedure
    • Reassembly
      • Notes
      • Procedure
    • Inspection
  • Rocker Arm and Shaft Disassembly, Reassembly, and Inspection (K20C2)
    • Disassembly and Reassembly
    • Inspection
  • Throttle Body Cleaning (Except K20C1)
    • Cleaning
  • Throttle Body Cleaning (K20C1) (2017 2018 2019 2020 2021)
    • Cleaning
• Repair Regeneration
  • Cylinder Bore Honing (1.5L Engine)
    • Honing
  • Cylinder Bore Honing (K20C2/K20C1)
    • Honing
  • Valve Seat Reconditioning (1.5L Engine)
    • Reconditioning
  • Valve Seat Reconditioning (K20C1) (2017 2018 2019 2020 2021)
    • Reconditioning
  • Valve Seat Reconditioning (K20C2)
    • Reconditioning
• Rewrite
  • PCM Update
    • Notes
    • Procedure
  • PCM Update (K20C1) (2017 2018 2019 2020 2021)
    • Procedure