Possible causes

– Faulty Intake Manifold Runner Control (IMRC) valve
– Intake Manifold Runner Control (IMRC) harness is open or shorted
– Intake Manifold Runner Control (IMRC) circuit poor electrical connectin

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1512 FORD Description

ECM has detected an incorrect Intake Manifold Runner Control (IMRC) signal- Valve closed