P1287 – Intake Manifold Tuning Valve (Nissan)

Description

The ECM detected a malfunction in the intake manifold tuning valve.

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Symptoms

  • Hesitation
  • Poor acceleration

Causes

  • Stuck valve
  • Vacuum leak
  • Wiring issue

Diagnosis

  • Inspect valve
  • Check vacuum lines
  • Scan live data

Repair

  • Clean valve
  • Repair vacuum leak
  • Repair wiring