Compression Ignition Addict
Join Date: Sep 2012
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My 6.4 EBP sensor relocation
A while back I had a leak in the up pipe that used to feed my EGR, back when I had an EGR. I may have broken it when I removed the EGR, but who knows. Rather than replacing the pipe, which would be impossible with the cab on, I decided to take the pipe out and relocate the EPB sensor.
I pulled off the EGR block off plate, and drilled and tapped it to 1/4" NPT. I had to cut the up pipe to get it out, which was a giant pain. I used an oscillating tool with a cutting blade on it for most of the first cut, which was above the expansion joint. The rest of that cut I finished with a small hack saw. It wasn't easy. After that cut I unbolted the pipe and dropped it down, and cut the bottom off with a Sawzall. That part was easy.
It took some doing for me to get the tapped block off plate and gasket bolted on to the new location, off of the main up pipe, but I was eventually able to get it done by myself.
I mounted the EBP sensor using a straight 1/4" NPT male to female flare fitting, then a 45 degree flare to flare elbow, just to elevate the EPB sunsor so that no moisture would collect there. I extended the sensor wires by soldering on extension, and covered them with corrugated tubing and electrical tape.
I have a couple pictures, but it's hard to get a good view back there. It's even harder to get your hands back there to work on it. In my opinion, if you have an EGR delete this is a good modification to do. It removes a useless pipe and tube that can cause problems, and puts the EBP sensor closer to the exhaust it's monitoring. I think it also minimizes the chances of the sensor getting clogged or moisture building up. I was surprised by the amount of black sooty liquid at the bottom of the EGR pipe when I removed the block off plate.
It seems that a lot of people have problems with the EGR up pipe like I did, so I thought I'd post a little bit about my experience. Hopefully it helps somebody out.