DTC P1512: Intake Manifold Runner Control (IMRC) Stuck Closed (Bank 1)

2006 Lincoln ZephyrSECTION DTC P1512: Intake Manifold Runner Control (IMRC) Stuck Closed (Bank 1)
P1512 - INTAKE MANIFOLD RUNNER CONTROL (IMRC) STUCK CLOSED (BANK 1)

Description:  This DTC is set when the vacuum actuated IMRC is commanded open, but the IMRC monitor indicates closed.
Possible Causes: 
  • IMRC monitor circuit open
  • Suspect IMRC solenoid
  • Mechanical concern - bind, seize, damage, or obstruction of IMRC hardware
Diagnostic Aids:  Monitor the IMRC and IMRCM PIDs. The IMRCM state should change when the IMRC is commanded open or closed.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - GO to Pinpoint Test HU .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.