P1108 – MAP/BARO Switch Solenoid Valve High Input (Nissan)

Description

The ECM detected a high input signal from the MAP/BARO switch solenoid valve.

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Symptoms

  • Poor acceleration
  • Hesitation
  • Rough idle
  • High fuel consumption
  • Check engine light

Causes

  • Short to power
  • Faulty solenoid
  • Vacuum leak
  • Connector corrosion
  • ECM signal fault

Diagnosis

  • Check wiring for shorts
  • Inspect solenoid
  • Test vacuum lines
  • Scan live data

Repair

  • Repair wiring
  • Replace solenoid
  • Fix vacuum leaks
  • Clean connectors

Related Problems

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