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Swapped a 2004 Hyundai elantra engine with a 2003. The Intake Valve Control Solenoid does not exist on the 2003 so I Zip tied the connector out of the way. Engine runs fine but error code P0077 will not clear. How can I make the ECM believe the solenoid is working?

Vehicle: 2003/4 Hyundai Elantra

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P0077 Intake valve control solenoid circuit high

Circuit high are disconnection code, this is what the ECM looks for open circuit which are disconnection. (on certain year circuit low is also a disconnection) grounded circuit. rationality, what you have is a disconnection. get the solenoid plug it in and secure it.

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