DTC P2421

14.10.2025

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Vehicle engine and/or automatic transmission

Code: P2421 - The vent valve in the Evaporative Emission (EVAP) System is stuck open, which can let fuel vapors escape from your vehicle's fuel system.

Video for "Error p2421" on YouTube

DTC Mini P2421 Short Explanation
p2421 long crank after getting fuel solved
What is P2421 Engine Code [Quick Guide]
How to Diagnose and Fix P2421 Engine Code - OBD II Trouble Code Explain

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The following error codes are often searched for

P0411 P0420 P0421 P0430 P0440 P0441 P0442 P0443 P0444 P0445 P0446 P0451 P0452 P0453 P0455 P0456 P0457 P0462 P0463 P0480

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