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P0456 Diagnostic Trouble Code Discussion for June 2023

EVAP System Small Leak


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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2017 Chrysler Pacifica LX 3.6L MIL Lamp on VIN: 2C4RC1BG6H
P0456: small evap leak. Vehicle came in with MIL light on and code PO456 set for small evap leak.We unhooked vent hose at ESIM and capped off the vent port at ESIM.Then hooked up smoke machine to test port in the purge line on engine.The flow meter went to zero so we replaced the...
June 06, 2023
2018 Toyota 4Runner SR5 4.0L evap leak VIN: JTEBU5JRXJ
P0456: Emmissions leak small. Hi to all - code sets intermittantly - we replaced the cannister module as when it runs automated test and its supposed to be pulling a vacuum on the tank it would drop to max vacuum in 1 second - since all of that is internal to cannister module we replac...
June 23, 2023
2018 Toyota 4Runner SR5 4.0L evap leak VIN: JTEBU5JRXJ
P0456: Emmissions leak small. Hi to all - code sets intermittantly - we replaced the cannister module as when it runs automated test and its supposed to be pulling a vacuum on the tank it would drop to max vacuum in 1 second - since all of that is internal to cannister module we replac...
June 26, 2023