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International Automotive Technicians Network
Re: How ECM's actually perform EVAP testing
Posted to Technical Theory Forum on 2/3/2008

It appears there's already a TSB out on the ESIM modules:

[...] [[...]]

oops!

W

SUBJECT: DTC P0456 - Evaporative System Small Leak Due To Loose Charcoal From Canister OVERVIEW: This bulletin involves performing the diagnostic procedure for DTC P0456, a... Login to read more.