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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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Repairs0Labor479Torque4166Fluid7DTC1896Battery1Maintenance0Recalls6
P0660low severityPowertrain

Intake Manifold Tuning Valve Control Circuit/Open Bank 1

on 2011 Acura RL 3.7L V6 · AWD

What this code means

The PCM detected an open in the intake manifold tuning valve control circuit on bank 1. This valve adjusts intake runner length for optimal airflow.

Symptoms

  • Check engine light on
  • Reduced power at certain RPM
  • Rough running

Common causes

  • Faulty tuning valve solenoid
  • Open or shorted wiring
  • Corroded connector
  • Faulty PCM

Diagnostic steps

  1. Scan for codes
  2. Inspect tuning valve wiring and connector
  3. Test solenoid resistance
  4. Check control circuit for continuity
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