Hi,
If everything checks good, there has to be a leak. Since you are not noticing anything that appears to be leaking, at this point you need to smoke test the system.
Basically, smoke is injected into the evap system at a very low pressure. If there is a leak, smoke should exit at that point
You need a smoke machine to do this. I don't know if parts stores have anything like this to rent. You may need to have it done at a shop if you don't have the tool.
If the sensor checks good, the connections between the sensors are accurate, it should work. So, there has to be a leak.
The code itself indicates signal voltage is too high from the FTPS. To me, it sounds electrical, but everything is passing.
Look at the pic below. It indicates the code, what it means, and what are the possible causes.
Let me know your thoughts.
Take care,
Joe
See pic below.
Image (Click to make bigger)
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Wednesday, April 20th, 2022 AT 7:02 PM