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
