P0464PowertrainGeneric SAE code

Evaporative Emission Control System Pressure Sensor Intermittent / Fuel Level Sensor Circuit Intermittent

P0464 is an OBD-II trouble code that indicates evaporative emission control system pressure sensor intermittent / fuel level sensor circuit intermittent. This page explains what the code means, what issues may trigger it, common symptoms and where to look next.

P0464 code meaning is one of the most common OBD-II searches when a warning light appears on the dashboard.

Drivers searching for P0464 usually want to know what the code means, whether the car is safe to drive and what part may need testing first.

Likely causes

• Faulty sensor
• Damaged sensor wiring
• Loose or corroded connector
• Open circuit or short circuit
• Poor electrical connection
• Fuel pressure issue

Symptoms

• Check engine light illuminated
• Poor fuel economy
• Hard starting or hesitation
• Intermittent warning light
• Inconsistent engine performance
• Fuel smell

Severity

Low to Medium

Can you keep driving?

The vehicle often still drives normally, but the issue should still be repaired because it can affect emissions and trigger repeated warning lights.

Common fix areas

• Inspect fuel cap seal
• Smoke test the EVAP system
• Check purge and vent valves
• Verify live data and sensor voltage
• Inspect sensor connector and wiring
• Check continuity, power and ground

Manufacturer notes

Generic OBD-II: This code usually has a common meaning across many supported vehicles.

Vehicle-specific diagnosis: The actual cause, symptoms and repair path can still vary by make, model and engine.

FAQs

What does P0464 mean?

P0464 means evaporative emission control system pressure sensor intermittent / fuel level sensor circuit intermittent.

What can cause P0464?

Common causes include component failure, wiring faults, incorrect sensor readings, leaks, pressure issues or related upstream faults in the same system.