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2011 ACURA RL
3.7L V6•AWD•AUTOMATIC•gas
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor479Torque4166Fluid7DTC1897Battery1Maintenance0Recalls6
P1077moderate severityPowertrain

IMRC Port Position Sensor Low Voltage

on 2011 Acura RL 3.7L V6 · AWD

What this code means

The intake manifold runner control port position sensor is reading a low voltage signal below the expected range. This affects intake airflow tuning and can hurt performance.

Symptoms

  • Reduced power at high rpm
  • Rough running
  • Check engine light on

Common causes

  • Faulty IMRC position sensor
  • Damaged sensor wiring or connector
  • Stuck intake runner valve
  • Faulty PCM

Diagnostic steps

  1. Scan for stored codes and freeze frame
  2. Check IMRC sensor wiring and connector
  3. Test sensor voltage with scan tool
  4. Inspect intake runner valve operation
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