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TuningBot DTC Database · v4.37.15

P0466 Purge Flow Sensor Circuit Range/Performance

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEmissionsOBD2

What P0466 means

P0466
Purge Flow Sensor Circuit Range/Performance Generic · emissions Data confidence 90%

The control module judged the Purge Flow signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Symptoms

  • MIL illuminated
  • Possible fuel smell in case of larger leaks

Possible causes

EVAP canister purge flow sensor

Recommended checks

  • Check fuel filler cap seating first
  • Read fuel tank pressure sensor values
  • Actuate purge and vent valves and verify response
  • Smoke-test the EVAP system for leaks

Related and nearby codes

How to read P0466

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

466

Specific fault index within the subsystem.

Frequently asked questions about P0466

What does P0466 mean?

Purge Flow Sensor Circuit Range/Performance. The control module judged the Purge Flow signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Is P0466 generic or manufacturer-specific?

P0466 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0466 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningDyno-tested results by model and engine See the results →

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