P1189 – Fuel Pressure Sensor Range/Performance (Nissan)

Description

The ECM detected a fuel pressure sensor signal outside the expected range.

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Symptoms

Poor acceleration
Hesitation
Rough idle
Check engine light

Causes

Faulty pressure sensor
Fuel pressure issue
Wiring issues
ECM signal error

Diagnosis

Test sensor output
Inspect wiring
Measure fuel pressure
Scan live data

Repair

Replace pressure sensor
Repair wiring
Fix fuel pressure issue