Possible causes – Faulty Intake Manifold Tuning Valve (IMTV)– Intake Manifold Tuning Valve harness is open or shorted– Intake Manifold Tuning Valve circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) has detected a high signal from the Intake Manifold Tuning Valve (IMTV) Symptoms – Engine Light ON (or…