P0108 – MAP Sensor High Input

Description

The ECM detects a high voltage signal from the MAP sensor.

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Symptoms

  • Poor fuel economy
  • Black smoke
  • Hesitation

Causes

  • Open circuit
  • Faulty MAP sensor
  • ECM fault

Diagnosis

  • Monitor MAP voltage
  • Inspect wiring
  • Check sensor

Repair

  • Replace MAP sensor
  • Repair wiring