P1107 – MAP/BARO Switch Solenoid Valve Low Input (Nissan)

Description

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

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Symptoms

Poor acceleration
Hesitation
Rough idle
Low power
Check engine light

Causes

Open circuit
Faulty solenoid
Vacuum leak
Connector corrosion
ECM driver fault

Diagnosis

Check wiring continuity
Inspect solenoid
Test vacuum lines
Scan live data

Repair

Repair wiring
Replace solenoid
Fix vacuum leaks
Clean connectors