2015 Coyote Advice Request

[edwardb]

EdwardB, I am at about this point in the install. I am wondering what you ended up doing with the hose from point #2? The newish FFR instructions have us running an air hose from a barb near the throttle body back to the fuel pressure regulator. The hose you mention in #2 is still un-used, and no mention is made of it in the instructions. Wondering how you handled it, since your car is already running beautifully.

I've confirmed the hose in point #2 is not used. I completely removed it. FYI, it goes from a manifold connection on the rear of the engine, through the intake to the front PS side of the engine. From there in a Mustang it attaches to a hose going over to the vacuum booster for the power brakes. It doesn't attach anywhere on the front of the engine. You're right. It's not mentioned in the latest FF Coyote instructions.

Also FYI, since the connection vacated by that hose was available and close, I used it for the vacuum source to the fuel regulator. I've heard from another forum member that he measured the vacuum on that connection at the back of the engine and it was marginal. He switched to the vacuum connection FF says to use on the front of the engine. Doesn't exactly make sense if that rear connection is supplying vacuum for the power brakes, but I'm going to measure mine when I get a chance. Will switch as well if it doesn't seem right.

[briankauf]

I've confirmed the hose in point #2 is not used. I completely removed it. FYI, it goes from a manifold connection on the rear of the engine, through the intake to the front PS side of the engine. From there in a Mustang it attaches to a hose going over to the vacuum booster for the power brakes. It doesn't attach anywhere on the front of the engine. You're right. It's not mentioned in the latest FF Coyote instructions.

Also FYI, since the connection vacated by that hose was available and close, I used it for the vacuum source to the fuel regulator. I've heard from another forum member that he measured the vacuum on that connection at the back of the engine and it was marginal. He switched to the vacuum connection FF says to use on the front of the engine. Doesn't exactly make sense if that rear connection is supplying vacuum for the power brakes, but I'm going to measure mine when I get a chance. Will switch as well if it doesn't seem right.

Thank you, as always, you're a huge help!