Trouble code P0028 intake valve control solenoid circuit (bank 2) The Intake Valve Control Solenoid uses oil pressure and an electrical solenoid to control the position of the exhaust valve.  Bank 2 Intake Valve Control Solenoid Circuit Failure. ECM/PCM Failure. Opened or Short Wiring and Harness. Electrical Connections to the Circuit and Sensor are poor Engine Oil Level Repair These Parts To Fix OBD Code P0028. It is used to improve the performance, fuel economy or emissions of the vehicle. Thus, it is important to keep this part in check. Replace the faulty components immediately. The first symptom can be that the ECM (Engine Control Module) detects a fault with the intake valve control solenoid and sets the Check Engine Light to illuminate on the vehicle’s dashboard. As the Check Engine Light illuminates, the ECM triggers a failsafe mode which disables the variable valve timing to stop further damage to the engine. Faulty variable valve timing will lead to reduced performance, fuel economy and increased emissions. Replacement of Engine Control Module (ECM). Replacement of Intake Valve Control Solenoid Bank 2. Repair/Replace Faulty Wiring and Connections associated to the Sensor and Circuit. Any qualified mechanic that has experience should be able to easily diagnose OBD Code P0081 error. An OBD-II scanning tool has to be installed into the vehicle’s DLC port and checked for any OBD codes present. There can be a possibility of more than one code present. Then, freeze frame data for all codes and keep them noted. Then the code is cleared and the vehicle is taken on a road test. The wiring harness and connectors in the Intake Valve Control Solenoid Circuit Bank 2. The ECM should be checked for any issues and faults. Each vehicle and manufacturer have its own distinct testing procedures and those should be followed taking into consideration the user manuals for that particular make and model for right assistance.