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MANUFACTURER DOCUMENTATION

Dodge Challenger

EVAP calibration cases separated by engine sales code.

Documented years: 2022

Match the document’s model, years, engine, market and other conditions. This page does not establish every code the vehicle can display.

Diagnostic guides

2022 Dodge Challenger P0456 or P0455: choose the correct EVAP bulletin

Compare the EZH, EZC and ESG engine bulletins, understand the manual-transmission completion step, and separate a software case from a demonstrated leak.

Manufacturer bulletins

EVAP codes with a software branch

EZH software case.

Scope: 2022 · 5.7L V8 Hemi MDS VVT EZH; LA

Displays in the document: P0455, P0456, P0440, P0441

Match the engine-specific document before the update.

Additional engines use separate sources in the guide.

Read the diagnostic case guide

Sources and scope

  1. 18-091-23

    FCA US LLC · Checked 2026-10-30

  2. 18-090-23 — Challenger EZC (August 16, 2023)

    FCA US LLC · Checked 2026-10-30

  3. 18-096-23 — Challenger ESG (August 29, 2023)

    FCA US LLC · Checked 2026-10-30

  4. STAR S2325000006 — diagnostic experience note (June 2023)

    Stellantis US LLC · Checked 2026-10-30

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