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Delete def

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4.4K views 24 replies 11 participants last post by  aja83  
#1 ·
I love my 2017 titan. I40k. It's suffering from sensor fails all over the intake and exhaust area. Latest a diesel exhaust fluid fail. The garage replaced 1 unrelated sensor and did an oil change for 800$. 40 more back sensors to go. I'm not going that road. I'd deleting the d.e.f. system a real thing and is it feasible and how much will it cost and where should I buy the components and who should I have do the work. Will it give me a big horsepower increase or is it reasonably the same animal.

I appreciate any help on this subject
 
#2 ·
Truth be told... You should trade/sell that thing while it's still running. Not what you want to hear. However, will be the best financial choice you can make unless you have unlimited funds to fix all the issues your already having, and your able to find a replacement motor for it when the crank snaps in half.
 
#4 ·
Truth be told... You should trade/sell that thing while it's still running. Not what you want to hear. However, will be the best financial choice you can make unless you have unlimited funds to fix all the issues your already having, and your able to find a replacement motor for it when the crank snaps in half.
I hear what your saying abd I dint have unlimited funds....the truck is pretty beat abd probably wouldn't net a lot of money. I don't think there's too many cases of the Cummins motors snapping the crank shaft in half. That's a pretty isolated problem
Truth be told... You should trade/sell that thing while it's still running. Not what you want to hear. However, will be the best financial choice you can make unless you have unlimited funds to fix all the issues your already having, and your able to find a replacement motor for it when the crank snaps in half.
 
#9 ·
No one on this site is trying to belittle you or give you a hard time. The reality is that the Cummins engines in Titans is garbage when compared to similar platforms with similar power plants. Cummins really $h!t the bed with Nissan on these things. The truth and reality is what is being told to you is true, don’t be mad at us for simply stating the facts and the truth. Don’t come to this forum expecting the be babied and pampered. We wish you the best of luck and we all hope you prove the STATISTICS and UNRELIABILITY of this crap power plant wrong.
 
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#8 ·
my dealer said they had done 5 cummins titans for broken cranks when i had to have my gas truck get the engine swapped. the nissan dealer told me to not get a cummins titan.

i hope deleting the def makes your truck run better and not have trouble. i have always wondered if that would help since the other issue with the diesel is the fuel system. i hope you have zero problems and stay on so we all get to see.

than we would have diesel titan guy who can help the others who show up
 
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#10 ·
Had my '18 Pro 4X deleted and tuned in Dec, 22 with 76K on it. Now sitting at 102 K, runs great, solid 18 mpg @ 85 mph. Many times while cruising down the highway I look down and find myself doing 90+, hence I use cruise control a lot. My cost was $1500 cash for the delete and a 100 hp tune AND it now sounds really bad a$$. Ask around at the diesel shops in your area and I bet you can find someone to delete yours.
 
#11 ·
Thats an awesome review of deleting a titan diesel. Thats how all the titan cummins SHOULD run
 
#12 ·
I'm new to the forum. Was reading this post because I in fact just got done deleting mine. Full dpf and EGRdelete.. My truck is sitting right at 45,000 mi. Purchased it about a year and a half ago with 36,000. The truck is beautiful and ran great compared to my previous ride. However, I have found numerous problems having past 6 months that have caused me to question my purchase. I've read and read all abmyt all the negative things regarding these engines. My biggest problem so far is finding a great selection of parts or availability of them.
I've only had the delete done for right at a week. Regarding price, $1,500 bucks is a joke. My delete kit alone along with easy link and tunes with SOTF switch was around $2,700.
Luckily I am a mechanic by trade. Had I done the work for someone else I would have easily charged them $1,500 labor.
I'm still playing around with the different tunes. I quickly figured out that anything above the second level of tune is just too damn much for the truck to handle fresh off the press. I'm sure that once I drive around in tunes 1 and 2 for a little while, the remaining tunes may adapt to shift conditions and such. At least that's what I'm hoping for.
Aside from that I found a dangerous problem with my suspension while I was working on it. And because someone half-*** lifted the truck 5 in before I bought it, I am now invested another $3,000 into a complete suspension kit to repair my problem and still accommodate these big *** 35-in tires.
Overall, the delete has by far been the best possible thing I have done for my engine. It really opened up the engine's potential. No, I have not seen substantial fuel economy gains. But I don't drive like a grandma either. I use my truck like a real truck. And I put it through the test of every situation.
The main reason I jumped on this thread was because after doing what I had just told you and working out the quirks, I have a code that continues to return. It is a code P22CE, stating the output valve is stuck.
I've cleared it twice already, but every time I get on the interstate and go to accelerate hard, it pops back on. It does not seem to affect the overall drivability when it occurs. But I do stand to wonder if it's okay to keep driving it without resetting it.
I haven't dug deep into the workings of the turbocharging system. As mentioned I've only had the truck for a little over a year and a half, and I am just now having the opportunity to investigate some of the engines workings.
About 6 months into my original purchase, the turbo actuator failed. When I called my local Nissan dealer, I was told how lucky I was that they had one in stock. Apparently they had been on national back order for some time, and the customer they had ordecallshis one for would not return their calls. So $700 later I was back on the road. I'm mentioned this because I'm curious as to whether or not this actuator is controlling the sticking valve that is mentioned above. I'm sure I'll figure it out on my own at some point. Just wondering if anyone had any thoughts on it.
 
#15 ·
I'm new to the forum. Was reading this post because I in fact just got done deleting mine. Full dpf and EGRdelete.. My truck is sitting right at 45,000 mi. Purchased it about a year and a half ago with 36,000. The truck is beautiful and ran great compared to my previous ride. However, I have found numerous problems having past 6 months that have caused me to question my purchase. I've read and read all abmyt all the negative things regarding these engines. My biggest problem so far is finding a great selection of parts or availability of them.
I've only had the delete done for right at a week. Regarding price, $1,500 bucks is a joke. My delete kit alone along with easy link and tunes with SOTF switch was around $2,700.
Luckily I am a mechanic by trade. Had I done the work for someone else I would have easily charged them $1,500 labor.
I'm still playing around with the different tunes. I quickly figured out that anything above the second level of tune is just too damn much for the truck to handle fresh off the press. I'm sure that once I drive around in tunes 1 and 2 for a little while, the remaining tunes may adapt to shift conditions and such. At least that's what I'm hoping for.
Aside from that I found a dangerous problem with my suspension while I was working on it. And because someone half-* lifted the truck 5 in before I bought it, I am now invested another $3,000 into a complete suspension kit to repair my problem and still accommodate these big * 35-in tires.
Overall, the delete has by far been the best possible thing I have done for my engine. It really opened up the engine's potential. No, I have not seen substantial fuel economy gains. But I don't drive like a grandma either. I use my truck like a real truck. And I put it through the test of every situation.
The main reason I jumped on this thread was because after doing what I had just told you and working out the quirks, I have a code that continues to return. It is a code P22CE, stating the output valve is stuck.
I've cleared it twice already, but every time I get on the interstate and go to accelerate hard, it pops back on. It does not seem to affect the overall drivability when it occurs. But I do stand to wonder if it's okay to keep driving it without resetting it.
I haven't dug deep into the workings of the turbocharging system. As mentioned I've only had the truck for a little over a year and a half, and I am just now having the opportunity to investigate some of the engines workings.
About 6 months into my original purchase, the turbo actuator failed. When I called my local Nissan dealer, I was told how lucky I was that they had one in stock. Apparently they had been on national back order for some time, and the customer they had ordecallshis one for would not return their calls. So $700 later I was back on the road. I'm mentioned this because I'm curious as to whether or not this actuator is controlling the sticking valve that is mentioned above. I'm sure I'll figure it out on my own at some point. Just wondering if anyone had any thoughts on it.
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#14 ·
It's a real thing. Resent full delete and Ez Lynk Agent-3 canned 5 position switch on the fly tunes at 75k on my 2016 pro 4x. Should of done it yrs ago. Used a kit from TheDieselDudes out of Canada. Shipped to my door for $2,400. Worth it. Add 15-20hp to canned tunes if ur straight piped from the down pipe. 1=0 or 20ish he. #5 tune spec is 140hp plus. I run on "Heavy Tow #2" plenty. Completely different truck. Ridiculous really. #3 position is rowdy. Still safe. Position 4/5 should come with a disclaimer that reads "F ur transmission Homeboy"! IMO. I'm to chicken ****/wise? To turn it up that high. Don't want to snap a crank,rear end. Smoke the Aisian transmission or pop a head stud.

To sum up, they are helpful. Sold plenty. Can't go wrong. Why I did it. And don't care who says what about it.. look at the emissions components after 75k.
 
#22 ·
Man, you guy's trucks sound like they are awesome now
 
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