So we all know general consensus is to install a catch can. Typically the can is installed in line with the stock PCV system going from the block to the intake manifold.

However there is a second line going from the valve cover to the intake tube just before the throttle body. Wouldn't this also cause oil to recirculate into the intake under WOT as well?

Typically on all my previous Honda's, I've simply removed the line, plugged the hole in the intake an ran the valve cover to a catch can. But they've all been MAP engines and this one is running a MAF.

​​​​​1) Has anyone installed a second catch can in line with the valve cover and intake?

2) If yes, did you run a closed un-vented can or did you simply plug the hole on the intake and run the valve cover to a vented can like you would a traditional high rev or boosted application?

3) if yes, any issues? Check engine light etc?

anecdotal bonus;
a buddy of mine has some cheapo mini camera we put down into my intake and my valves are already looking pretty filthy (only a month of ownership)

4) has anyone used crc intake valve cleaner? Wondering if I should give it a go. Any negative or potential hazard when using it? Burned seals, check engine light etc?

 

It would be more correct to say that the general consensus of people who have already installed a catch can is to install a catch can.

There are tens of thousands of Fits sold every year and I would guess very very very few of them have catch cans installed by their owners. I would say that based on this it is more correct to say that it is the consensus of the general majority of Fit owners not to install a catch can.

 

Okay......

 

Lmao that about sums it up.

Do you have or can you get pictures of this build up OP?