P0466 Fault Code

Purge Flow Sensor Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0466 fault code refers to an issue with the Purge Flow Sensor Circuit Range/Performance. This sensor is responsible for monitoring the vapor flow to and from the vehicle's evaporative emission control system, which is essential for reducing harmful emissions. When this code is triggered, it indicates that the sensor is not working within its expected parameters, which may lead to increased emissions and poor engine performance.

What are the symptoms of the P0466 code?

• Illuminated check engine light
• Decreased fuel efficiency
• Rough idling or stalling issues
• Increased emissions during emission tests
• Failure to pass an emissions inspection

What causes the P0466 code?

• Faulty purge flow sensor
• Wiring issues or damaged connectors
• Vacuum leaks in the EVAP system
• Problems with the engine control module (ECM)
• Malfunctioning charcoal canister

How to fix P0466?

• Inspect the purge flow sensor and its electrical connections for any damage or corrosion
• Replace the purge flow sensor if found faulty
• Check for vacuum leaks in the EVAP system and repair as necessary
• Verify that the engine control module is functioning correctly
• Clear the fault codes and perform a drive cycle to see if the code returns