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Thanks,
Vent Valve:
air moving freely into the tank: that means that valve would not allow for vacuum to build up in the tank (I have seen vacuum numerous time when air get sucked in after you open the tank cap.
Positive vapor pressure in the tank can build up until the valve opens: will hold some vapor pressure. That won't be much pressure I guess as the valve sits currently on the rubber hose without a clamp.
I removed the added line and built the area back to how it was roughly in its original state.
For the cat I think MA inspection did not care so far as the cat did not really work without the o2 sensor (That o2 sensor was removed and only a capped port and cable was left...because I passed inspection various times before.
I think I can remove that cat but wanted to check more closely.
Could it be that the cat is partially clogged and thus restricting the exhaust flow?
If this could be the case then it would be a bigger argument for removal.
If not then I can wait and remove it whenever I have time for exhaust renovation (there is so much on the renovation list already before I can have this car as a daily driver).
Martin
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