The code: P0455- Evaporative Emission (EVAP) System Large Leak Diagnostic
This gets triggered when there is a larger leak detected in the EVAP system. It could be a stuck open valve it can also be a cracked hose.
I have attached the trouble shooting steps for the P0455 (see below).
Also attached all the component diagrams and testing procedure for different type of issues.
Please let me know of any questions.
Images (Click to enlarge)
Wednesday, October 13th, 2021 AT 8:27 AM