Operation CHARM: Car repair manuals for everyone.

Variable Valve Timing Solenoid: Description and Operation



Electronic Engine Controls


Electronic Engine Controls Locations:






The engine management system consists of a powertrain control module and a number of sensors and actuators. The sensors supply the powertrain control module with input signals which relate to engine operating conditions and the actuators respond to output signals from the powertrain control module. These output signals are based on the evaluated input signals which are compared with calibrated data tables or maps before the output signal is generated.

Variable Camshaft Timing (VCT) Solenoid
The variable camshaft timing solenoid effects the inlet camshaft timing only. The actuator is a helical spline type, which is engine oil driven. It provides 50° of rotation for camshaft adjustment under different types of engine torque and load conditions.