What does code P1512 mean?

Q: What does code P1512 mean?

Intake Manifold Runner Control Stuck Closed. P1512 on Ford vehicles means the powertrain control module (PCM) commanded the intake manifold runner control (IMRC) to move but the runner position did not change as expected, so the PCM flags the system as stuck closed. The IMRC uses vacuum or an electric actuator to open a set of butterfly valves in the intake manifold, changing the effective runner length for better low-end torque and high-rpm airflow. When the valves stay closed, the engine runs on the long-runner path only, which the PCM detects by comparing commanded state to actual runner position.

DTC codes / Ford codes / P1512

P1512 · FordIntake Manifold Runner Control Stuck Closed

P1512 on Ford vehicles means the powertrain control module (PCM) commanded the intake manifold runner control (IMRC) to move but the runner position did not change as expected, so the PCM flags the system as stuck closed. The IMRC uses vacuum or an electric actuator to open a set of butterfly valves in the intake manifold, changing the effective runner length for better low-end torque and high-rpm airflow. When the valves stay closed, the engine runs on the long-runner path only, which the PCM detects by comparing commanded state to actual runner position.

SystemPowertrain

Code typeFord specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for Ford vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.