NOx efficiency low, SPN 4364 FMI 1 and 18. SPN 3364 FMI 2 and 17. Try this work first.

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Күн бұрын

2011-2014 Freightliner Cascadia with NOx efficiency fault codes and DEF quality low fault codes. This is a common problem most trucks with One Box will come across.
If you have checked everything such as your DOC inlet pressure, DPF pressure, DEF quality and suspect your One Box might need to be replaced. Try this before you go and spend a lot of money.
Positioning your NOx outlet sensor in a different location can help increase your numbers.

Пікірлер: 55

@Armannortheast Ай бұрын

Be honest with you. You are from best of best number one mechanic. No one s professional like you in USA. 🇺🇸

@CarlosDieselElectric Ай бұрын

Thank you

@govinlama2731 7 ай бұрын

I Love your videos ❤❤❤❤❤❤❤ appreciating

@noesnaula8863 10 ай бұрын

Very good videos❤

@chrisfrancis6881 Жыл бұрын

So bottom line what was the problem? Bad sensor?

@Dmtr909 Жыл бұрын

Thank you bro 😎

@Steve.191 Жыл бұрын

Thank you 👍

@Louis19699 Жыл бұрын

Only one thing makes me suspicious. Nox sensor measure nox concentration . Correct? Now how outlet sensor readings higher then inlet sensor. If sensors reading correct numbers outlet sensor can't read higher then front What producing the extra nox amount?😎 I think the problem in that case is the outlet nox sensor. I was checking my theory on two different truck with bad scr filter. Im not saying that scr box is functional and Im not saying outlet nox sensor replacement going to bring up efficiency. Only saying according the numbers in my experience if both sensor is good outlet sensor never higher than the inlet . But im not in the commercial truck repair business just a diagnostic and troubleshooting fanatics having fun help for my trucker friends. Watching every episodes and thank you for your hard work creating the videos. 🍻🍻

@CarlosDieselElectric Жыл бұрын

In my instance, the tail pipe had heavy soot. Usually means the DPF may have issues even though you can complete a successful regen or the One Box may have an internal issue or failure.

@Louis19699 Жыл бұрын

I think you misunderstood me and we r not the same page. Not trying to judge or question your decision . Also I not saying that 1box is functional. Only saying is outlet nox sensor IF working properly can not be higher then inlet sensor. Unless some small engine hiding inside the scr and puffing out nox.😃. Just think of the dddl low temperature regen for nox sensor drifting test . I hope no hard feelings because I have a loudmouth.✌️

@CarlosDieselElectric Жыл бұрын

@@Louis19699 Roger that. No feelings hurt at all I understand 👍🏼

@Louis19699 Жыл бұрын

🍻

@joekeefe3229 Жыл бұрын

good tip, ive used it before works perfect. My ? is on a ghg 17 parked scr performance test. the truck puts out pretty much 0 outlet nox but fails the test, dddl say it failed MU3 test. What is MU3 test?

@mehdiraza85 7 ай бұрын

Hello. SPN 4364 FMI 18 amd SPN 3364 fmi 2 comes up. Then i have to do a parked regen and then the code goes away. What could be the reason

@KaspaMaxi-mp6ym Ай бұрын

Works on 2016 dd15. Throws a code so dealer knows its been jacked with but truck runs fine. I forked the nox outlet harness loom and all. Have 2nd sensor in enclosure under my fridge in bunk. Almost Impossible to tell its bypasses by looking at things. It gets hot on its own thsts why its in a metal enclosure

@jamesx3030 9 ай бұрын

I got a fault code 5018/18 , the dealership is going to clean the doser valve, they also blew my coolant line😢

@derpasaurusrex8335 5 ай бұрын

This is called a bypass. California does not like this. And ghg17 models have a setting that detects this and will derate immediately. Only works on epa10 and ghg14 models. 2010-2016. Best thing to do is disconect the metering valve on these the botom two pin injector on the Metering valve and run a regen to burn off def deposits. After a regen reconnect and perform the efficiency test. If the effeciency rises the one box has been cleaned. If not the one box/scr module has failed.

@CarlosDieselElectric 5 ай бұрын

The by pass is definitely a temporary thing especially if just need to get from point A to point B. New trucks are definitely getting smarter.

@derpasaurusrex8335 5 ай бұрын

@@CarlosDieselElectric agreed.

@doruk2a Жыл бұрын

For how long will work this method? And how many time can do it before changing dpf filters ? Thanks

@CarlosDieselElectric Жыл бұрын

The sensor on the outside is so the inlet reads one thing but the outlet sensor will rear clean air and the efficiency should almost be 100%. The DPF filters themselves don’t have to be serviced until the MCM or ACM says so.

@J_R15 Жыл бұрын

How can I make an appointment with you? I’ve tried 3 different shops and none have fixed my issue with these codes

@CarlosDieselElectric Жыл бұрын

Call my shop 323-728-4721 so we can talk more about what is going on with your truck and what you have done so far.

@J_R15 9 ай бұрын

SPN 5246 FMI 0 SPN 3364 FMI 2 SPN 4364 FMI 1 SPN 4364 FMI 18 SPN 5246 FMI 15 SPN 5246 FMI 16

@javimontalvan8175 6 ай бұрын

So was the Nox sensor bad? I’m having this issue right now with the same codes

@CarlosDieselElectric 6 ай бұрын

Could be a bad sensor. Depending on the reading. What is your outlet ppm reading?

@omeezey11 4 ай бұрын

Can you drive the truck like this? Not ideal or maybe legal, but in an emergency situation?

@CarlosDieselElectric 4 ай бұрын

Great question, yes you can drive like this to get you where you have to go. If the efficiency is low or below passing, it could be a bad One Box, bad DPF or sensors. It isn’t illegal, again just helps you get from point A to point B.

@dieselmobiletruck1631 Жыл бұрын

Good morning Mrs pedro I have the same problem with a 2014 freightliner 114sd Detroit dd13 and in my case the DEF light is flashing when I do the regeneración start whit 2% and goes up to 98% and drops out to 40% after 20 minutes the SCR test fails any ideas. So far I replace the DPF filters because they're were cracked put a new I that the it was all but I have the DEF light flashing like I mentioned before

@CarlosDieselElectric Жыл бұрын

What is the DOC inlet pressure? Also, on the tail pipe, do you have any signs of soot ?

@norcalgorilla Жыл бұрын

@@CarlosDieselElectric doc inlet is reading at around 0.63 psi at its hottest

@norcalgorilla Жыл бұрын

There's soot but not much built up

@CarlosDieselElectric Жыл бұрын

@@norcalgorilla how long does the regen run before it aborts or it is stopped?

@norcalgorilla Жыл бұрын

@@CarlosDieselElectric it runs the regen for about 40 minutes. It reaches the target temperatures, 600 and 1200 degrees. Once it reaches target temp, the scr efficiency just drops.

@muktisah4271 Жыл бұрын

Send me detail 1844 fault code

@ericsaldana7042 6 ай бұрын

So the 1 box is done & the sensor is still good. Am I understanding that correctly?

@CarlosDieselElectric 6 ай бұрын

NOx efficiency needs to be 70% or higher. The outlet sensor should read around 50-60 PPM. If you have different readings you may have an issue with internal failure or soot may be pushing through. Look for any signs of soot at the outlet pipe

@dell7054 6 ай бұрын

@CarlosDieselElectric mostly external these boxes don't last more than 500k. I did the same and so far so good

@dell7054 6 ай бұрын

YES THIS HAS WORKED FOR ME 2018 CASCADIA DD15.. DO THIS AND FUC THE DEF.. UNLESS u do a delete

@jorgefacio690 Жыл бұрын

so at 650k or 750k one will have to replace the one box???

@CarlosDieselElectric Жыл бұрын

According to Detroit they said the life of the One Box is around 650-700K miles. I have seen them last longer but I think it depends on maintenance history, idle time, City driving versus over the road.

@jorgefacio690 Жыл бұрын

@@CarlosDieselElectric ah ok I just got a new code on my 2012 freightliner that I have never seen before. would you have any idea what it means? BRAKE SPN000639 J1939 NETWORK 9.

@kamleshsahstpl9231 Жыл бұрын

Send me detail of 1844 fault code

@CarlosDieselElectric Жыл бұрын

What kind of truck and what kind of engine?

@dieselmobiletruck1631 Жыл бұрын

4364 fmi 1 fmi 18

@CarlosDieselElectric Жыл бұрын

Check for any signs of soot in the exhaust pipe. You may have a compromised One Box that is allowing soot to pass through to the SCR and that will definitely give you a NOx efficiency low. Check you DEF quality.

@dieselmobiletruck1631 Жыл бұрын

I did check with the refractometer

@dieselmobiletruck1631 Жыл бұрын

Hey Mrs pedro you were right about the SCR passing soot to DPF yes that's were the problem was thanks for your help

@CarlosDieselElectric Жыл бұрын

@@dieselmobiletruck1631 glad you found the problem. Hopefully the truck can be fixed. I wish Detroit would have designed the One Box differently. I do like how Cummins does it. Keep everything separate and serviceable.

@dieselmobiletruck1631 Жыл бұрын

Yes sr you are right in this case isn't. The SCR DPF is all in one that way they called one box. But once again whit all may respect thanks again Mrs pedro