P1181 – Fuel Delivery System Pressure Too Low (Bank 2, Nissan)
Description
The ECM detected fuel pressure that is too low on Bank 2.
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Symptoms
- Poor acceleration
- Hesitation
- Long crank time
- Stalling
- Check engine light
Causes
- Weak fuel pump
- Clogged fuel filter
- Leaking injector
- Fuel pressure regulator fault
Diagnosis
- Measure fuel pressure
- Inspect pump voltage
- Check injectors
- Scan live data
Repair
- Replace fuel pump
- Replace fuel filter
- Repair wiring
- Fix injector leaks
