Ford P0660 OBD-II Trouble Code Definition: P0660 Intake Manifold Tuning Valve Control Circuit Open Bank 1 P0660 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0660 Intake Manifold Tuning Valve Control Circuit/Open What does the code mean? OBD-ii Code P0660 definition: The Intake Manifold Tuning Valve (IMTV) system is monitored for failure during continuous, key ON engine […]