How does variable valve lift work?
How does variable valve lift work?
Its movement is driven by the camshaft via a series of components. VVEL varies valve lift by the eccentric control shaft inside the rocker arm. By rotating the eccentric control shaft, the position of rocker arm is shifted, changing the swing angle of cam. The swing angle of cam determines the degree of valve lift.
What is the purpose of an intake valve actuator?
An Intake Valve Actuator or IVA (also known as a Varible Valve Actuator or VVA) is a device that contacts the intake rocker arm and holds the intake valve of an ACERT Cat engine open in an effort to lower the cylinder temperatures of the engine. This is done to help lower NOX emissions.
What is the P2008 intake manifold air control actuator?
P2008 – Intake manifold air control actuator / solenoid, bank 1 -open circuit Trouble Code Fault Location Probable Cause P2008 Intake manifold air control actuator / s Wiring open circuit, intake manifold air
What is the intake valve actuator on ACERT cat?
An Intake Valve Actuator or IVA (also known as a Varible Valve Actuator or VVA) is a device that contacts the intake rocker arm and holds the intake valve of an ACERT Cat engine open in an effort to lower the cylinder temperatures of the engine.
When do you use a variable valve actuator?
The variable valve actuators are used in order to control the closing of the inlet valves. The variable valve actuators do not operate until the engine oil has reached a desired temperature.
How does the intake valve actuator system work?
The Intake Valve Actuation system (IVA) uses pressurized engine oil to delay the closing of the intake valves. The system is controlled by the Engine Control Module (ECM). The system contains the following components:
Why is my intake valve not working properly?
The intake valve actuator is not responding correctly to the commands from the ECM. This can be caused by the following conditions: There is an oil leak in the system. There is a problem with an actuator. The valve lash is incorrect. The adjustment of an actuator is incorrect.
What is the code for open intake valve?
If the control valve is partially open, a 283-7 code is usually activated in addition to the 385-1 code. Follow the troubleshooting procedure in order to identify the root cause of the problem.
What is code for C 13 intake valve actuator?
Replaced jake/intake actuator assembly and had no other problems. Last week light came on and had a code for #2 this time. Replaced the other 2 jake/intake actuator assemblies. Next day light came on again and derated power and now have code for low oil pressure to actuation system.
