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I have a code 412 fail 31 on a cummins isb 6.7, Freigjtliner

Customer Question
I have a code 412...
I have a code 412 fail 31 on a cummins isb 6.7
JA: What is the complete model and serial number of your machine?
Customer: Freigjtliner 2011 m2
JA: Are you fixing this yourself? What have you tried so far?
Customer: Just trying to figure out wats goin on wit the truck
JA: Anything else you want the equipment mechanic to know before I connect you?
Customer: No
Submitted: 1 year ago.Category: Medium and Heavy Trucks
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Answered in 26 minutes by:
9/9/2016
Technician: go-west.., Technician replied 1 year ago
go-west..
go-west.., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1,243
Experience: Technican with 20 years experience focused on engines and electrical.
Verified
Good evening
Can I get your engine serial number?
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Customer reply replied 1 year ago
73112100
Technician: go-west.., Technician replied 1 year ago
Please recheck that code
It doesn't home up
How did you get it?
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Customer reply replied 1 year ago
From the dashboard
Customer reply replied 1 year ago
Its saying 509852spn fail 31
Customer reply replied 1 year ago
Any luck
Technician: go-west.., Technician replied 1 year ago
the check engine is it on?
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Customer reply replied 1 year ago
The check engine , regen and engine protect light on
Technician: go-west.., Technician replied 1 year ago
The 509 code is a software error with the ICU.
They have been working on a fix on that one for months
Don't be alarmed with that one
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Customer reply replied 1 year ago
It saying spn 412 fail 16 now
Technician: go-west.., Technician replied 1 year ago
Exhaust recirculation temperature data correct but moderity highThat's the sensor before the air horn.measures gas temp after the cooler
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Customer reply replied 1 year ago
Wats the sensor called
Customer reply replied 1 year ago
Will that shut down the truck and cause it not to regen?
Technician: go-west.., Technician replied 1 year ago
Exhaust recirculation temperature sensor
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Technician: go-west.., Technician replied 1 year ago
No
But it may derate the engine to get the exhaust temperature down to acceptable temperatures
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Customer reply replied 1 year ago
Well the engine is cold and i just start it and its doin the same thing
Technician: go-west.., Technician replied 1 year ago
Is there any other codes -?
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Technician: go-west.., Technician replied 1 year ago
Are you using coolant?
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Customer reply replied 1 year ago
No other codes and no colant
Customer reply replied 1 year ago
I mean the coolant level is allways full
Customer reply replied 1 year ago
Wat u think
Technician: go-west.., Technician replied 1 year ago

sorry for the delay

have a look at the diag for this code,it states that the truck needs to run loaded and unloaded for the code to clear,also look at causes on whats causes this code to happen,.take truck for a ride and see if clears but i see we need a step further and check some components how are you with a wrench ??

https://www.dropbox.com/s/yp1de4pjvwzji7x/123.pdf?dl=0

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Customer reply replied 1 year ago
Very good
Customer reply replied 1 year ago
I did a complete egr tune up i change the scr put a new doser valve and had cummins clean the dpf
Technician: go-west.., Technician replied 1 year ago

. Check for active fault codes.Active fault codes present other than Fault Code .Check the exhaust gas recirculation (EGR) temperature sensor.

. Check the EGR temperature sensor accuracy.EGR temperature within 10°C [18°F] of ambient air temperature?

.Check the cooling system.

. Check the engine coolant mixture.Engine coolant is proper mixture?

. Check the engine coolant level.Engine coolant level at proper level?

.Check the EGR system.

. Check the EGR differential pressure sensor ports for plugging.Debris or soot found in either EGR differential pressure port?

.Check engine control module (ECM) calibration and clear fault codes.

. Check if an ECM calibration update is available.If a calibration update for this fault code is available, does the ECM contain that revision or higher?

.do you have insite?

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Customer reply replied 1 year ago
No
Technician: go-west.., Technician replied 1 year ago

let me know if the egr delta p ports are plugged

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Customer reply replied 1 year ago
U tink i should try and drive the truck
Customer reply replied 1 year ago
No its not plugged
Customer reply replied 1 year ago
I pulled the differential pressure sensor the egr the map sensor and the turbo pressure sensor already today and clean them and put them back
Customer reply replied 1 year ago
U tink one of those sensor is bad
Technician: go-west.., Technician replied 1 year ago

did you look at the inlet on the cooler ? when you worked on it ??

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Customer reply replied 1 year ago
Wats the egr drlta p ports?
Technician: go-west.., Technician replied 1 year ago

The delta ports are under the Delta p sensor by the egr valve

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Customer reply replied 1 year ago
No dats not plugged
Customer reply replied 1 year ago
Which cooler the egr or the turbo?
Technician: go-west.., Technician replied 1 year ago

egr

check the exhaust side inlet.They tend to get restricted

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Customer reply replied 1 year ago
Are u talkin bout the fat blue hose that conects to the intake manifold
Technician: go-west.., Technician replied 1 year ago

are you talking about the egr cooler or the egr delta p ??

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Customer reply replied 1 year ago
The egr pipe comes from the egr cooler right if its rhat your talkin bout thats clear
Customer reply replied 1 year ago
Wats the egr delta pipe
Customer reply replied 1 year ago
just to be clear we're not talkin bout the turbo intercooler pipe
Technician: go-west.., Technician replied 1 year ago

Sorry the egr delta p sensor ports

You said they were clear right ?

thats the sensor ontop of the egr valve

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Customer reply replied 1 year ago
The delta pipe is clear
Technician: go-west.., Technician replied 1 year ago

No we aren't

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Customer reply replied 1 year ago
the ports are clear
Customer reply replied 1 year ago
The egr clear delta p ports clear and the delta pipe clear
Technician: go-west.., Technician replied 1 year ago

perfect,Now lets get to the egr cooler

check the exhaust side inlet.They tend to get restricted

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Customer reply replied 1 year ago
do i have to remove the egr cooler?
Technician: go-west.., Technician replied 1 year ago

No

can you get to the back of it without taking it off ? some you can..also by chance did you ever take the exhaust recirculation temp sensor out and inspect the tip ? i would do that before doing anything else.

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Customer reply replied 1 year ago
the ets is that on the dpf filter if so that was checked recently when i had it cleaned
Customer reply replied 1 year ago
The back of my egr cooler connects to the exhaust manifold
Customer reply replied 1 year ago
Where is the temperature sensor located and how many are there
Technician: go-west.., Technician replied 1 year ago

https://www.dropbox.com/s/yp1de4pjvwzji7x/123.pdf?dl=0

have a look at the above,The document will you were it is,its by the egr valve

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Customer reply replied 1 year ago
I cannot open that drop box
Customer reply replied 1 year ago
Ok so i just started the engine up and all the lights went out beside the regen light but as soon as the engine started to warm up the engine and shut down light came on and shut down the truck
Technician: go-west.., Technician replied 1 year ago

OK

THE 412 code will not cause the stop engine light to come on,Please recheck the codes i do believe another code has come up

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Customer reply replied 1 year ago
Thats wat it is saying spn 412 fail 16
Customer reply replied 1 year ago
spn 509852 fail 31
Customer reply replied 1 year ago
Do u think if freightliner come and plug up there computer to the truck they might get a different reading
Technician: go-west.., Technician replied 1 year ago

If they come down they will able to check the sensor for accuracy

it would be helpfull

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Customer reply replied 1 year ago
But i would really like to know which is the temperature sensor
Technician: go-west.., Technician replied 1 year ago

oh

its the one beside the egr valve,the connector will be green.

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Customer reply replied 1 year ago
Nex to the egr is the delta p
Customer reply replied 1 year ago
On the pipe that comes from the egr cooler to the egr there is one sensor is it that one?
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go-west..
go-west..
go-west.., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1,243
1,243 Satisfied Customers
Experience: Technican with 20 years experience focused on engines and electrical.

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