Ford P0728 OBD-II Trouble Code Definition: P0728 Engine Speed Input Circuit Intermittent P0728 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0728 Engine Speed Input Circuit Intermittent What does the code mean? OBD-ii Code P0728 definition: The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send […]