P0075 Code - Intake Valve Control Solenoid Circuit Bank 1

What Does Code p0075 Mean?

Intake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the ECM.The intake valve timing control solenoid valve changes the oil amount and direction of flow through intake valve timing control unit or stops oil flow.

The longer pulse width advances valve angle.The shorter pulse width retards valve angle.When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.

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What are the common causes of P0075 ?

Depending on year, make, and model, DTC P0075 may have number of causes. Here are some of the most common.
Circuit Problems – Wire harness and connector damage are the main causes of this VVT failure. Poor repair practices and rodent damage are common causes of this type of damage.

VVT Solenoid Valve Problems – The main failure here is an open circuit in the solenoid coil.

How do you troubleshoot P0075 ?

Because this code P0075 is different for each manufacturer, it is best to follow the specific instructions from that manufacturer before replacing any components. Many tests simply do not apply to all vehicles and the function and operation of individual components.

Many cars now use Variable Valve Timing to improve performance and fuel economy. The methodologies are often different due to patent rights and manufacturer processes using a variety of power sources, such as electricity, oil pressure, and engine rpm to operate. Most European cars have had these systems for years and each are different, adding to the complexity of the operation. BMW has at least 4 different evolutions as they have been a leader in this technology. The test procedure here is very general, but applies to most cars with the system.

It is very advisable to follow the manufacturer instructions for each model of vehicle to make sure the procedure is done precisely.

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