Hyundai Accent (HC): Body Electrical System

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Variable Intake Solenoid (VIS) Valve

- Description Variable Intake manifold Solenoid (VIS) valve is installed on the intake manifold. The VIS valve controls the vacuum modulator which activates a valve in the intake manifold. The ECM opens or closes this valve according to engine condition (Refer to below table). Engine conditionVIS valveOperation Medium speedClosedIncreasing engine performance in low engine speed by reducing intake interference among cylinders Low / High speedOpenMinimizing intake resistance by shortening intake manifold length and increasing area of air entrance - Specification ItemSpecification Coil resistance (Ω)30.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Piston and Connecting Rod

- Disassembly     • Use fender covers to avoid damaging painted surfaces. • To avoid damage, unplug the wiring connectors carefully while holding the connector portion.     • Mark all wiring connector and hoses to avoid misconnection. • To release the fuel system pressure before removing the engine assembly, start the engine without fuel pump relay.