• The VCV regulates the delivery of fuel from the internal transfer pump (ITP) to the high pressure pumping elements.
• The VCV adjusts the low pressure side of the system to match the needs of the engine thus increasing efficiency.
• The VCV is permanently mounted to the high pressure pump and is not to be removed.
Removal of the VCV will result in replacement of the high pressure fuel injection pump.
NOTE: Fuel caps have been left off for visualization purposes. Always use fuel caps when servicing the high pressure fuel system!