What causes P1518 on a Ford?

Carbon-bound intake manifold runner flaps Failed IMRC actuator motor or cable Broken IMRC linkage clips Faulty IMRC position sensor Vacuum supply fault on vacuum-operated IMRC systems

How do I fix P1518 on a Ford?

Command the IMRC with a scanner and watch position feedback Inspect the actuator cable, linkage and clips for breakage Check for carbon binding by moving the runner plates by hand Verify vacuum supply where the system is vacuum-operated Clean or replace the runner assembly and confirm full travel

P1518 Intake Manifold Runner Control Stuck Open

Q: What does P1518 mean on a Ford?

P1518 — Intake Manifold Runner Control Stuck Open. Applies to Mustang, Taurus SHO, Escape, Focus with IMRC systems.

Category: Powertrain - Computer and Auxiliary Controls
Severity: Check Engine Light
Applies to: Mustang, Taurus SHO, Escape, Focus with IMRC systems

What does P1518 mean on a Ford?

P1518 — Intake Manifold Runner Control Stuck Open. This Ford-enhanced code applies to Mustang, Taurus SHO, Escape, Focus with IMRC systems.

Common causes of P1518

Carbon-bound intake manifold runner flaps
Failed IMRC actuator motor or cable
Broken IMRC linkage clips
Faulty IMRC position sensor
Vacuum supply fault on vacuum-operated IMRC systems

How to fix P1518

Command the IMRC with a scanner and watch position feedback
Inspect the actuator cable, linkage and clips for breakage
Check for carbon binding by moving the runner plates by hand
Verify vacuum supply where the system is vacuum-operated
Clean or replace the runner assembly and confirm full travel