DPF pressure sensor tube

[TrophyHusband]

I've returned my exhaust to stock after about a year and a half of running the CAT/DPF delete and my memory is now failing me. There's a fitting on the DPF that looks like it should have a tube on it but I can't for the life of me remember whether or not there was a tube there when I did the original swap and I can't find any tube tucked away anywhere under the truck. After driving it for about a day and a half the check engine light came on and I got codes of P1000, U0115, and P2452. P2452 is the one I'm most concerned with right now. Looking under the truck I can see soot from exhaust coming out of the fitting. Logic tells me that a tube should go on that fitting and that should take care of the P2452 code. Can anyone help me here?

[Dave At BD Power]

Are you sure it is not a DPF sensor, how many sensor are installed?

Can you supply a picture?

Dave

[TrophyHusband]

There are 3 probe type sensors installed and then there's this one. I've made some progress here though. I found the sensor that the tube is supposed to go to. I looked on the DPF delete pipe and there was a hose on the corresponding fitting but it was only about an inch and a half long. That looks like it would be long enough if I could get the fitting on the DPF to line up with the fitting on the sensor, but I can't. The tube also doesn't seem very snug and the fittings aren't barbed so I'm wondering if there are supposed to be hose clamps. I can't find a picture of what it's supposed to look like stock, that would probably clear things right up. I'll go take a picture of what I have and post it.

[TrophyHusband]

Here are a couple pictures.

[smotrs]

Yep, that's the pressure sensor, you should have a small hose attaching the two ends.

Sent from my LTEVO using AutoGuide app.

[TrophyHusband]

OK, I figured it out. The main issue was my lack of attention to detail. It turns out that the fitting didn't line up with the sensor because the fitting wasn't screwed in all the way. A few turns of the wrench took care of that and everything fit together. I cleared the codes and fired up the truck. Now hopefully there won't be any more issues before I get some maintenance done on it.

[Dave At BD Power]

Thanks for the update, good to hear you figured it out

Dave

[CoolHandMatt]

So did this fix the code for good?

I have a new to me 6.4 and have the same code (P2452) other than that everything seems to be running tip top.

My mechanic replaced the sensor and the CEL came back on.

Any ideas on how to diagnose?