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Follow up on Regen prob with DPF delete

720 Views 6 Replies 6 Participants Last post by  Cottondoc
I had a recurring regen problem with my truck after installing an H&S DPF delete a few weeks ago. It took a while to figure out, but the problem was my fault on the install. I plugged the air pressure lines that went to the stock exhaust rather than leaving them unplugged like they are supposed to be. This caused the computer to read increased pressure and start a regen cycle. I have since put nearly a 1000 miles on the truck after unplugging the pressure lines with no regens. So, if you are having unexplained regens with a DPF delete, check the pressure lines and make sure they aren't plugged. I put a small double ended pipe fitting between them to keep them closed off from the elements and eliminate any possible difference in pressure between the lines. Thanks to everyone that offered suggestions and help. I really appreciate it.:thumbsup
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Discussion Starter · #7 ·
I would definitely not put bolts or plugs of any kind in those pressure lines. That is what I originally did, and I got regen after regen no matter what I did. As soon as I unplugged those lines(like everybody else), I haven't had a regen since over about 1,200 total miles. The fitting I used is just a small, approx 1/4" diameter pipe with male barb ends on each end. I spliced the lines together with this so the pressure between them is always equal. Lousianna Pipefitter had a better idea it sounds like. Just remove the short hose and plug the other end of the long hose onto the originall fitting where the short hose plugged in to the sensor. This has the same effect as my splicing the two lines together, but it is simpler and doesn't hang as low. I will probably change mine to this. Thanks.
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