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TuningBot DTC Database · v4.37.14

P0496 Evaporative emission (EVAP) system - high purge flow

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

P · PowertrainEmissionsOBD2

What P0496 means

P0496
Evaporative emission (EVAP) system - high purge flow Generic · emissions Data confidence 90%

The control module detected a fault associated with the Evaporative emission (EVAP) system - high purge flow circuit or function; the stored code identifies the affected component rather than a single failure mode.

Symptoms

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

Possible causes

  • Wiring
  • EVAP valve
  • mechanical fault

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 P0496

P

Powertrain: engine, transmission and driveline systems.

0

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

496

Specific fault index within the subsystem.

Frequently asked questions about P0496

What does P0496 mean?

Evaporative emission (EVAP) system - high purge flow. The control module detected a fault associated with the Evaporative emission (EVAP) system - high purge flow circuit or function; the stored code identifies the affected component rather than a single failure mode.

Is P0496 generic or manufacturer-specific?

P0496 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0496 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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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