Important Information Regarding 2015-2016 Coyote CMCV Plumbing

[Al_C]

OK, thanks. So here's what I have:

- PS goes to vacuum "port" on driver's side (where the pen is).
- Cap off port where pen cap is.
- choice of capping off vacuum port on fuel pressure regulator or attaching it via "Y"
- make (yet another) hole in the elbow and attach DS hose.

Problems: There is no "Y" in my coyote fitment kit. Or anywhere else in my "misc. parts box". That's another story. So, I may just go the capping route. Also, if I'm going to go the "tough" emissions route for the PCV, I need to make a hole for that in the elbow, too. If the newest generation Coyote doesn't have the DS hose, why not just leave it unconnected? The only difference is filtered vs. unfiltered air.

[edwardb]

OK, thanks. So here's what I have:

- PS goes to vacuum "port" on driver's side (where the pen is).
- Cap off port where pen cap is.
- choice of capping off vacuum port on fuel pressure regulator or attaching it via "Y"
- make (yet another) hole in the elbow and attach DS hose.

Problems: There is no "Y" in my coyote fitment kit. Or anywhere else in my "misc. parts box". That's another story. So, I may just go the capping route. Also, if I'm going to go the "tough" emissions route for the PCV, I need to make a hole for that in the elbow, too. If the newest generation Coyote doesn't have the DS hose, why not just leave it unconnected? The only difference is filtered vs. unfiltered air.

You're on the right path. I didn't have a Coyote completion kit. The "Y" connector I used was from my local O'Reilly Auto Parts. But just capping the vacuum port on the regulator seems to be an acceptable alternative. For the DS hose, I honestly don't know if you can just remove it. As I understand, the change Ford made is more than leaving the hose off. They apparently added some type of caps or filters to the CMCV valves. But I don't have any actual experience. Maybe someone else can chime in. Not that it matters, but it's a little more than just filtered vs. unfiltered. The intake connection would have some kind of air pressure and velocity. But clearly Ford determined it wasn't necessary. The connectors for the elbow are available from JLT Performance. Maybe you've seen that in other threads. Pretty easy to drill the holes and attach. FWIW I personally prefer the tough emissions approach.

[Dave Howard]

I ditched the CVS hoses and installed small K&N filters on each cylinder head. Eliminated the need for drilling a hole in my intake runner and the addition of another unsightly hose. I think I used the vacuum port for the power brakes as the vacuum source for the fuel pressure regulator. Used a series of reducers to get to the proper size. Like I said in my previous post " Supply vacuum where your installation requires it. Cap the rest. You can remove unused or unwanted hosed to de-clutter your installation."