P1183 – Fuel Delivery System Pressure Too High (Bank 2, Nissan)
Description
The ECM detected fuel pressure that is too high on Bank 2.
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Symptoms
- Rich mixture
- Poor fuel economy
- Rough idle
- Fuel smell
- Check engine light
Causes
- Faulty pressure regulator
- Restricted return line
- Stuck injector
- ECM control fault
Diagnosis
- Measure fuel pressure
- Inspect return line
- Check injectors
- Scan live data
Repair
- Replace pressure regulator
- Repair return line
- Replace injector
