The camshaft position is not altered by the VTEC system, its relationship to crankshaft position remains fixed, What happens with VTEC is that the camshaft has extra cam lobes with different profiles and there are also extra rocker arms which follow these cams but are normally not connected to main rocker arm, so they just freewheel and do not affect valve operation positions. The extra arm(s) can be linked or un-linked to main arm (the main arm is only one long enough to touch both the cam and the top of valve, the extra arms are only long enough to touch the cams) by hydraulic pins which have springs to return them to retracted (unlocked) position when engine oil pressure not pushing them forward, this oil pressure to pins is controlled by ECU via an on-off solenoid valve, but in the absence of oil pressure (engine stopped) the pins will be returned to unlock position by their springs, always leaving the valve timing in its basic position for starting and low rev operation.