The engine code P0241 is the main thing what need to check is to verify the action of the VCT solenoid. You are looking for a penetrating or stuck VCt solenoid valve instigated by contamination. Mention to vehicle exact repair manual to achieve section tests for the VCT unit. You may learn some information about the engine code from the general meaning of the code and that is p for Powertrain Code – Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 2 for Computer And Auxiliary Outputs. 4 for Control Module Throttle Actuator Position Performance and 1 for PCM Stack Overrun.