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Deleted diesel exhaust codes causing issues with inspection or title work in La?

Posted on 1/16/19 at 9:07 pm
Posted by eyepooted
Member since Jul 2010
5717 posts
Posted on 1/16/19 at 9:07 pm
Has anyone had any trouble having a new/used diesel truck inspected or titled by the state because of exhaust codes being deleted?

I’m looking at a used truck out of state that has a “deleted Sotf (gdp tuned)” and I want to make sure that this isn’t going to cause me any issues at the DMV.
Posted by 03GeeTee
Oklahomastan
Member since Oct 2010
3402 posts
Posted on 1/16/19 at 9:13 pm to
As far as I know if they have a programmer or something that keeps the truck from throwing a check engine code you should be ok for LA. I used to have a mustang with no catalytic converters and I had it programmed to not throw a code. Passed inspection with flying colors every time.


ETA: Although they may have changed their procedures since the last time I got one. I haven’t had an inspection sticker for over 2 years now because I moved to a state that doesn’t require them.
This post was edited on 1/16/19 at 9:20 pm
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43031 posts
Posted on 1/16/19 at 9:19 pm to
I never had problems with mine, but that was 5 years ago
Posted by eyepooted
Member since Jul 2010
5717 posts
Posted on 1/16/19 at 9:24 pm to
quote:

Hammertime


Hey can you explain to me what a ‘switch on the fly’ tune and a gdp tune is please. I’m trying to understand this stuff with no luck finding clear info on the internet. Can you explain the positives and negatives of having these things done to the motor. I would very much appreciate the knowledge.

Wait... am I confusing you with Downshiftandfloorit?
This post was edited on 1/16/19 at 9:28 pm
Posted by YOURADHERE
Member since Dec 2006
8421 posts
Posted on 1/16/19 at 9:32 pm to
GDP = the company that did the tuning

SOTF = Shift On The Fly

Meaning you’ll be able to go from one tune to a different tune with a flick of a switch. No experience with it but that’s how it works.

Whereas if I want to change tunes on mine I have to park, shut the truck down, and the entire process takes about 20 minutes.
Posted by eyepooted
Member since Jul 2010
5717 posts
Posted on 1/16/19 at 9:41 pm to
Does Sotf make the truck less dependable, louder or blow a lot of black smoke? Because I don’t want any of those things.
Posted by CliffTheHead
Des Allemands, La
Member since Feb 2014
27 posts
Posted on 1/16/19 at 10:18 pm to
I have SOTF on mine, it does none of those and mine is a 2012. If you delete your DPF your truck may be a little louder but nothing major from my experience. That’s just my 2 cents, hope it can be of some help for you.
Posted by YOURADHERE
Member since Dec 2006
8421 posts
Posted on 1/16/19 at 10:21 pm to
That’s a tough question to answer and it’ll depend on what make/model the truck is and what tuning is in it.

Example: My truck is a 2012 Ford 6.7, I tuned/deleted mine after the faulty DEF sending unit went out, it would have been ~$1000 to repair so I just deleted for ~$900. Mine is louder but no where near unbearable, it’s just a DPF delete pipe but still has a small muffler, there’s no cab droning or inability to hold a conversation or anything like that. I’d say it’s more reliable because I no longer have to mess with DEF and the things that come with it, the amount of black gunk inside the intake manifold was pretty gross too. As for smoke, mine is relatively clean and only smokes when I really lay into it hard. Spirited interstate merging doesn’t leave a cloud of black smoke behind.
Posted by eyepooted
Member since Jul 2010
5717 posts
Posted on 1/16/19 at 11:00 pm to
Thanks for your input fellas. Very helpful
Posted by Barneyrb
NELA
Member since May 2016
6896 posts
Posted on 1/17/19 at 7:57 am to
quote:

the amount of black gunk inside the intake manifold


I was under the impression that comes from the EGR, did they do away with that also?
Posted by dfintlyHmmrd
Jigga City
Member since Dec 2016
1408 posts
Posted on 1/17/19 at 8:04 am to
quote:

Does Sotf make the truck less dependable, louder or blow a lot of black smoke? Because I don’t want any of those things.


This will depend on the actual tunes that he has on the trucks. SOTF just means you can switch tunes while you are driving. So it is possible that the tunes on the truck are higher performance tunes that will blow black smoke and make the truck less dependable.
Posted by Fachie
Magnolia
Member since Mar 2017
525 posts
Posted on 1/17/19 at 8:04 am to
Never had an issue, but I always went to shady places because they seem to not care.
Posted by Reelscreamers
Member since Aug 2011
120 posts
Posted on 1/17/19 at 8:15 am to
I did a full delete on mine with 20K miles after O2 sensors went out and the dealership kept it for a week. I have the Dodge that had the regen system on it, I learned quickly that you had to be at highway speeds for long periods of time in order for it to regen. Can't drive highway speeds on Grand Isle and the truck would go into 'safe' mode if you did not regen when the filter got full.

I have the SOTF system and my biggest advantage was that I went from 14 MPG to 22 MPG on the highway.

The truck is a beast that I hope last forever - I have 122K on it now and have NEVER had an issue since doing the delete and placing the tuner on it.

As of right now Louisiana does not have emission tests for diesel trucks. I know of no implications for title purposes and in my opinion, I would not own another diesel that did not have tune kits on them.
Posted by YOURADHERE
Member since Dec 2006
8421 posts
Posted on 1/17/19 at 8:21 am to
Correct, the tune disabled the EGR and I'm about to remove it soon.
Posted by Polar Pop
Member since Feb 2012
10914 posts
Posted on 1/17/19 at 8:43 am to
Do any of you have experience deleting DPF/SCR system from 18 wheeler tractors?
Posted by bayoudude
Member since Dec 2007
25838 posts
Posted on 1/17/19 at 8:56 am to
I also deleted my 2012 6.7L. Have full egr delete with straight pipe and resonator. Kept the stock tip so as not to bring attention to the truck. Sounds like a dual exhaust gas truck at idle though you do get more of a diesel smell from the exhaust. Only roles coal if I get on it hard. Nice to be able to switch from stock to 150 ho tune on the fly. Been over 20k miles since delete with zero problems. Also picked up a couple mpg.

ETA: I live in MS so no yearly inspections not sure if I would do it in Baton Rouge where they test emissions not sure if it applies to diesels but I know they test gas vehicles.
This post was edited on 1/17/19 at 8:57 am
Posted by bulltiger91
Member since Jul 2018
125 posts
Posted on 1/17/19 at 12:49 pm to
Tuned and deleted my previous truck which was an lmm series duramax. It was an efi live tune by corey willis (highly recommend) with sotf from 0-150 hp settings. Usually kept it on the 120 hp setting and babied it. Truck was much stronger, picked up mpgs, and always passed inspection. I downsized to a half-ton gas burner like a moron, miss that truck...
Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 1/17/19 at 12:53 pm to
quote:

ETA: I live in MS so no yearly inspections not sure if I would do it in Baton Rouge where they test emissions not sure if it applies to diesels but I know they test gas vehicles.


The BR emissions test consists only of checking the seal of your gas cap, nothing else concerning emissions is done , its a joke.
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