P1290 – Intake Manifold Pressure Sensor Low Input (Nissan)

Description

The ECM detected a low input signal from the intake manifold pressure sensor.

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Symptoms

  • Low power
  • Hesitation

Causes

  • Vacuum leak
  • Faulty sensor
  • Wiring issue

Diagnosis

  • Check MAP sensor
  • Inspect vacuum lines
  • Scan live data

Repair

  • Replace sensor
  • Repair wiring