Clearing Codes Before an Emissions Test: How Long Should You Wait?
from CarTechTalk Podcast
Alex and Emma break down why clearing a check engine code resets your vehicle readiness monitors and why waiting a fixed number of days or miles will not guarantee an emissions pass. In this episode Clearing diagnostic trouble codes resets onboard readiness monitors back to incomplete. A vehicle can have no active check engine light and still fail an emissions inspection due to unset monitors. Drive cycle requirements vary widely by vehicle make, temperature, and specific system like EVAP or catalyst. Always verify monitor readiness with a scan tool instead of relying on elapsed time or a fixed mileage target. Links & resources Read the full article: How Long After Clearing Codes Before Emissions Test OBD2 scanners OBD2 scanners with live data for fuel trim Vehicle Emissions Inspection and Maintenance resource professional car diagnostic tools OBD2 scanners guides Today's verified car tech deals How we review car tech Visit CarTechTalk
Embed this episode
What this episode covers
Alex and Emma break down why clearing a check engine code resets your vehicle readiness monitors and why waiting a fixed number of days or miles will not guarantee an emissions pass.
No transcript yet.