Fuel Pressure Regulator Control Solenoid Circuit Malfunction (Nissan)
What does P1180 mean?
The P1180 code means the vehicle's onboard diagnostic system has detected: Fuel Pressure Regulator Control Solenoid Circuit Malfunction (Nissan). This is a moderate severity code.
Common Symptoms
- Check Engine Light on
- Poor engine performance
- Hard starting
- Rough idle
- Engine stalling
Probable Causes (Ranked by Likelihood)
- Faulty fuel pressure regulator solenoid Very High
- Wiring fault to the fuel pressure solenoid High
- Corroded connector at the solenoid Moderate
- Fuel pressure regulator mechanical failure Moderate
- ECM driver circuit fault Low
Step-by-Step Diagnostic Procedure
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Test fuel pressure at the rail with a gauge
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Check the fuel pressure regulator solenoid resistance
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Verify power and ground at the solenoid connector
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Inspect wiring for damage between ECM and solenoid
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Replace the solenoid if electrically failed
Frequently Asked Questions
What does the fuel pressure regulator solenoid do?
On Nissan direct-injection and returnless fuel systems, the fuel pressure regulator solenoid controls fuel rail pressure electronically. The ECM adjusts the solenoid to maintain optimal fuel pressure for various driving conditions.
Can low fuel pressure cause engine damage?
Sustained low fuel pressure can cause a lean condition that leads to engine overheating and potential damage. High fuel pressure can cause rich running, foul spark plugs, and damage catalytic converters.
Is this a common Nissan problem?
The fuel pressure regulator solenoid can fail on high-mileage Nissan vehicles, particularly on models with direct injection. It is a known service item but not as common as other Nissan repairs.