I have a 2019 3.5 EcoBoost starting doing some mods after I pulled exh manifolds off to bolt up full race manifolds I pulled my wires out the crankcase pressure sensor on drivers side that goes from intercooler tube to valve cover it has a yellow, yellow green ,and a green brown can someone please tell me when you look at yours plugged in from the firewall out which colors go where I tried many different set up and replaced the sensor and tube and keep throwing a p051D-00 code I thought i had it right we erase the code drive home fine shut off truck start it back up and the engine light comes back on. thanks for info I'm new to this site but not new to the EcoBoost.
crankcase pressure sensor
3.5ecomike
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@3.5ecomike
Have you fixed this yet? I did the exact same thing on my 2017 and have tried every wiring combo but keep throwing the code. I change the wires, reset CEL, start it(no code), drive it and code comes back. Before I put my new sensor on I want to make sure I have the wiring correct so I don’t wreck the new one.
So I did the same thing as you and wired it back IAW the picture and wiring diagram in this thread and now I have a P051B code. I have a 2017 3.5. I saw another post which showed the wiring order as yellow/green, Green/brown, yellow from left to right. Thoughts? Thanks.
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Same issue. what is the correct order from left to right? Send a picture?
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See post 2 in this thread.
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This does not help. I can read a line drawing but dies not help as the plug holes are not labeled. The picture of the plug in the manual does not help either as that’s not for an F150. I need to know the order plugged into the physical sensor. From left to right I need to know if the order is:
(Y, Y/g, G/v) or (Y/g, Y, G/v)
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Are you saying post #10 (https://www.f150ecoboost.net/posts/1421355/) isn't the connector you are needing help with?
Get me a connector number and I'll look in my big wiring diagram book for it.
Get me a connector number and I'll look in my big wiring diagram book for it.
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Could anyone post this exact photograph from a 2020 3.5? The wire colors are not the same. Accidentally ripped mine out of the clip when changing spark plug.
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Could anyone post a photograph of the pcv sensor wiring from a 2020 3.5? The wire colors are not the same. Accidentally ripped mine out of the clip when changing spark plug.
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Would really appreciate any help on what order the wires go into that clip
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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76 Posts
after a year I have the same codes again..
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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76 Posts
I think its my wires going into pigtal I see lots of this sensor, I cant believe it would be bad again, but maybe it was not to begin with .. I yanked those small wires out a couple of times, they were bent over pretty good when I got the truck, there is not much wire to cut and solder back together or I guess I could add some wire in the cut.. anybody have some advise on that issue thanks ..
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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76 Posts
Did you ever get the colors right ?
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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76 Posts
I took my catch can off also never had much in the can ..
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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76 Posts
Is there any comments on the fix for this code anyone ???
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13,472 Posts
Reading back through, it seems you're needing to rewire the connector?
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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thats my guess try to replace some of the wire its so small diameter but it has to be the issue a sensor just doesnt go bad all the time ..
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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ok after a lot searching if anybody else thinks they need a new pig tail here is the ford part number wpt-1308 cu2z-14s411-ava I will get one and see what happens
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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So last night I took pig out and tried to secure wires better, put back in sensor, and cleared codes, went to start truck & now a wrench symbol on dash I just shut it off did not look to see what code it was throwing now, as I hopefully will get my new pigtail today from dealer, and I will try to get it put on this weekend, and see if it works..
2019 f150 sc 4x4 full race exhaust manifolds, cvf intercooler,open up exhaust flanges, gearhead auto
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I picked up new pig tail not yet put on I played with wires in orginal one just to see if I can stop engine light from coming on, and I was not able to, I am scratching my head on the pictures I have form earlier post on wiring colors, I dont even know if I have them right, the picture that was posted with plug is diff year but I would think they should be the same ?? then you look at the pig tail 1 should be yellow, and 2 should be ye,gr and 3 should be gn,vt so when I have it plugged into sensor the yellow should be first one on top left to right ? I get a engine light with the key on dont even have to run the engine, I will start it and engine light right away for code po51b ... or when looking at plug when in sensor should yellow be on the far right then go left from there no one ever showed a picture of the plug off a 2019 ecoboost 3.5? once I threw 2 codes po68a came up also.. I checked the pcm relay with electrician at work it appears good ..
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