P0455 (Large Evap leak)
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Joined: Sep 2022
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From: Phoenix, AZ
P0455 (Large Evap leak)
Trying to track down a P0455 Large Evap leak. Hooked up my smoke machine and found a couple leaks but the P0455 still is coming back. I have the throttle body plugged, but I'm seeing a good amount of smoke from the butterfly pivot pin and also from the oil cap. Are these issues or normal areas that will leak during this type of test? I haven't tested the gas cap yet, but I hear that is a common cause of this error code.
Robert
Robert
