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P151A - Intake Manifold Runner Controller Performance

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P151A - INTAKE MANIFOLD RUNNER CONTROLLER PERFORMANCE

Description:  The intake manifold runner control (IMRC) system is monitored for failures. The test fails when the system detects a loss of bi-directional communication or signal(s) between the PCM and the IMRC solenoid.
Possible Causes: 
  • IMRC control circuit open
  • Mechanical concern - bind, seize, damage, or obstruction of IMRC hardware
  • IMRC control circuit short to voltage
  • IMRC VPWR circuit open
  • IMRC GND circuit open
  • Damaged IMRC actuator
Diagnostic Aids:  View the IMRCF PID to monitor for a fault.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All   refer to PINPOINT TEST HU .