2007 Honda Element LX, 2.4 YH1, AutomaticFACTORY OEM SERVICE PROCEDURE

VTC System

  • The VTC system makes continuous intake valve timing changes based on operating conditions.
  • Intake valve timing is optimized to allow the engine to produce maximum power.
  • Cam angle is advanced to obtain the EGR effect and reduce pumping loss. The intake valve is closed quickly to reduce the entry of the air/fuel mixture into the intake port and improve the charging effect.
  • The system reduces the cam advance at idle, stabilizes combustion, and reduces engine speed.
  • If a malfunction occurs, the VTC system control is disabled, and the valve timing is fixed at the fully retarded position.
    Fig 1: Identifying VTC System Waveform Graph
    G05448882Courtesy of AMERICAN HONDA MOTOR CO., INC.
Factory Service Tools

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When to See a Mechanic

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

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

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