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Add you vehicle and it shows a diagram. That isn't the part but I couldn't get the part to come up. The actual part goes onto the part in that link.
 
Bump. Came here looking for solutions to code P0229 on a 2016 3.5L ecoboost with 102k miles. The code would come up and clear itself then come up again. The stock boost gauge still showed pressures of 15psi or more. after checking all the fittings I pulled the blow off valve and found a rip same as others. Thanks for the help. Hope others find this useful as well.
 
Thanks everyone for this Thread and the helpful posts. My truck has been doing the same thing. Its not pulling a CEL light it just shows cuz I leave the SCT BDX plugged in. I was getting a p0299 and the p1548. Once the p0299 code pops on my programmer I would be in LIMP mode. Basically the truck felt like it were N/A. The LIMP mode only engages if i go WOT and when I left off the boost is gone. If I clear the codes then I have full boost again and man is it Quick. I have tried just about everything and cant keep spending any more money (I have done quite a few suspension mods also). I like to do things right once rather than fix something for a while. Im just gonna get the Turbosmart Vee Port EM BOV and I really hope that fixes my issue.

2014 Limited 4WD
New OEM Motorcraft Plugs gapped .30
New Turbos (Fully Rebuilt by a Reputable Turbo Shop)
SCT BDX Programmer running 93 Perf Tune
Replaced all 3 MAP Sensors (Brand New)
No Boost Leaks or frayed cables or etc

I dont know what else it could be except the BOV from reading this post. I will let you guys know if this fixes my problem, I really hope so cuz this is really getting annoying. And no one wants to drive a truck around in limp mode or baby the truck all the time to avoid going into limp mode.
 
Just saw this on Youtube...

Was most interesting. I have not had this issue myself, but going to keep this around if I can remember if it does pop up on me..

Mitch
 
Just saw this on Youtube...

Was most interesting. I have not had this issue myself, but going to keep this around if I can remember if it does pop up on me..

Mitch
Thanks man Im watching that right now. Very informative.
 
I had this code very intermittently, but my truck started throwing other codes about the cats, so got that fixed. It was still throwing this code occasionally. I think the unit can get a hole in the diaphragm and also a little sticky to move. mine lasted 130K miles, but has been defective for at least a year or two! I think it gradually failed, I didn't notice the power loss as I don't tow.
 
I had this code very intermittently, but my truck started throwing other codes about the cats, so got that fixed. It was still throwing this code occasionally. I think the unit can get a hole in the diaphragm and also a little sticky to move. mine lasted 130K miles, but has been defective for at least a year or two! I think it gradually failed, I didn't notice the power loss as I don't tow.

Hmmmm...I havent even pulled mine off yet and checked it But I have done pretty much everything else that has been suggested from numerous sources. I just said it and ordered the TurboSmart Vee Port EM BOV. I dont tow anything either, but when the truck is in LIMP mode it doesnt matter what you are doing....you can tell 100%. Its literally like driving around with a fully fuctioning Ecoboost that isnt turbocharged....
 
I would have probably been more upset, but I have a radio that can reset the ecm check engine light, and I do it while moving, even thought it says not to. haha
Yea I clear mine off also using my programmer. But Im really anxious to see how much Power Im really losing. What does suck though is every time I clear a code, I have to reset certain things that I change. Its not mandatory but its annoying none the less. I like the ambient light a certain color, I like my Stereo system and Subwoofer set a cerain way, my auto running boards, and etc.
 
Just wanted to bring this up from the dead.
I had the P0299 code as well and the very first thing I checked was the blowoff valve. Large hole.

Thanks! Saved me quite a bit in diagnostic fees and a ton of time.
I will be hunting down part # AA5E-9U465-AD ...update - dealer has it in stock for $52. A bit more expensive than the $35 online but hey...it's in stock and I want the truck back up and running.

 
Have a 2014 f150 3.5 CEL p0299, I checked out the hoses all seems good no oil leaking anywhere, I replaced BOV still having the same problem.just like the other people are saying I have boost sometimes, so it’s works sometimes, anybody out here can help me please I can’t seem to figure it out.
 
I too am getting a P0299 code on a 2013, Ford F150.
The code is erratic but more of a nuisance. . I pulled of the BOV sensor and sure enough also has a tear.

Going to dealership to get a replacement and hope this fixes my issue.
Welcome to the forum !
The BOV is very easy to replace yourself.
 
I'm having this issue, 2013 EB. Replaced the BOV already, and did a visual inspection of all the hoses, charge pipes, etc, which seem fine from what I can tell. This seems to be a problem once the truck is heat soaked... it'll drive just fine for 30 mins or so, then go into limp mode, pop the code, and drive like complete garbage requiring a heavy foot to get moving.

Anyone have any other suggestions before it goes into the shop? I watched that video of the different things to check, the only thing I cant test are the wastegates but I suppose I could get a positive pressure pump to try that too, just didn't have one on hand.
 
How do you clear the codes while driving?
You can leave your code reader plugged in while driving. I use the Torque Pro app and a ODB2 blue tooth thingy that connects to a smart phone. You can monitor a ton of sensors while driving. You can check for codes an the fly and clear them on the fly.

Mitch
 
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