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Home/DTC Codes/Fiat/Cronos/2018-2025 1.3L I4 Flex Firefly/P0446
P0446

EVAP Vent Control Circuit

2018-2025 Fiat Cronos 1.3L I4 Flex Firefly

Low SeverityPowertrainGeneric (SAE)

Description

Malfunction in the EVAP vent control circuit. The vent valve controls airflow to the charcoal canister.

Symptoms

  • Check Engine Light
  • Fuel tank pressure issues
  • Difficulty refueling

Common Causes

  • Faulty vent valve
  • Blocked vent filter
  • Wiring issue
  • Spider webs/debris in vent hose

Diagnostic Steps

  1. Test vent valve operation
  2. Inspect vent filter
  3. Check wiring
  4. Inspect vent hose for blockage

Repair Notes

Replace vent valve or clean vent. Check for debris in vent hose.

Related Codes

P0440Evaporative Emission Control System MalfunctionP0449EVAP Vent Valve/Solenoid Circuit

Other Powertrain Codes

P0446 on Other Vehicles

Fiat 124 Spider

2017-2020 1.4L I4 Turbo

Fiat 126p Maluch

1973-2000 0.65L I2 Air-Cooled

Fiat 126p Maluch

1987-2000 0.7L I2 Air-Cooled

Fiat 500

2012-2019 1.4L I4

Fiat 500 Abarth

2012-2019 1.4L I4 Turbo

Fiat 500 BR

2011-2020 1.4L I4 Flex Fire Evo

Fiat 500 PL

2007-2025 1.0L I3 Hybrid FireFly 70

Fiat 500 PL

2007-2025 1.2L I4 Fire 69

Common Questions

What does code P0446 mean on a 2018-2025 Fiat Cronos?

P0446 stands for "EVAP Vent Control Circuit". Malfunction in the EVAP vent control circuit. The vent valve controls airflow to the charcoal canister.

What are the symptoms of P0446 on a Fiat Cronos?

Common symptoms of P0446 include: Check Engine Light, Fuel tank pressure issues, Difficulty refueling.

What causes P0446 on a 2018-2025 Fiat Cronos?

Common causes of P0446 include: Faulty vent valve, Blocked vent filter, Wiring issue, Spider webs/debris in vent hose.

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