10 Chrysler ESIM Leak Detection

Video 10 of 27 in the Evaporative Emission System Diagnostics for Import and Domestic Vehicles program: • Evaporative Emission S...
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[@tt-rs1457]

Sir,
what will cause the P0441 (purge flow incorrect)
Will it the switch from the ESIM , that won't close or will stuck close all the time ?

[@richrn79]

Very informative, thank you very much for posting this explanation of a part that seems to go bad often.

[@ImarSchmo]

I had the unfortunate luck of grabbing this as my first video to describe the operation of the ESIM. I was totally confused because THIS VIDEO IS WRONG. The diagram shown SHOULD HAVE the charcoal canister/fuel tank on the left side and a filtered vent to the atmosphere on the right, but it doesn't. It would have been simple enough to say that the ESIM is a pressure relief valve that contains evaporative emissions below a certain tank pressure, allows air back into the fuel tank below a certain vacuum, and has an electrically monitored pressure switch to verify there are no system leaks.
Please fix this video. Thanks in advance.