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Fig. 46: VTEC/VTC Operation Chart Fig. 47: VTEC/VTC Description VTC system The VTC system makes continuous intake valve timing changes based on operating conditions. Intake valve Cam angle is advanced to obtain the EGR effect and reduce pumping loss. The intake valve is closed quickly to The system reduces the cam advance at idle, stabilizes combustion, and reduces engine speed.
2004 Acura TSX 2004 ENGINE PERFORMANCE Fuel & Emissions Systems - TSX
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