Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

Jeremy, I have a 2008 Mitsubishi fuso 4 cyl. after you drive…

hi Jeremy, I have a...
hi Jeremy, I have a 2008 Mitsubishi fuso 4 cyl. after you drive it for 30- 40 miles it has a pending code of p0401 (egr insufficient) and a p1441 (dpf temp 4 abnormal) I replaced the exhaust brake ( it was broke) replaced fuel filter / oil filter / oil. can you tell me in your experience what would trigger a issufficient egr flow as well as that dpf 4 temp abnormal code.
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 1 hour by:
1/18/2018
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,887
Experience: Owner at DJ Wilson
Verified

Hi ,My name is***** will be glad to help. We can follow up as needed on here, Give me some time to review your information and post my responses. Im not an employee of the site but I help on here as time allows in between jobs. Response time will vary depending on my work load , etc. What is the complete engine model number from the engine ID tag?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 7 months ago
4m50-6at8

Ok thanks... Check the turbo for problems and intake boost piping for leaks causing a loss of boost pressure and not enough heat for regen... Also check for excessive soot/carbon plugging the EGR system restricting flow. Ill see what else i have for these codes for you in my files as well.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 7 months ago
I will do you have any suggestions for checking for boost leaks. if leaks are obviose its not to difficult to find but it gets tricky when there are small boost leaks cause I cant hear them with engine runing

If you can adapt a block off and charge with low regulated air pressure( 30-35 PSI range) to then spray soapy water solution to check for leaks.

Ask Your Own Medium and Heavy Trucks Question

P0401

Possible causes

EGR passage clogged

Faulty EGR Vacuum Modulator Valve

Faulty EGR Valve

Faulty EGR solenoid valve

EGR solenoid valve harness is open or shorted

EGR solenoid valve circuit poor electrical connection

Dead (Weak) battery

Faulty EGR temperature sensor and circuit

Exhaust gas leaks

Ask Your Own Medium and Heavy Trucks Question

After particulate matter (PM) combustion control of diesel particulate filter parked regeneration is started, more than 30 minutes have passed without any measurements by exhaust gas temperature sensor 1 not reaching the temperature required for enabling regeneration of ceramic filter. (Poor ceramic filter temperature control during diesel particulate filter parked re-generation control.) Where this diagnosis code is issued, diagnosis code P1441 is left in the record of past diagnosis codes.

Ask Your Own Medium and Heavy Trucks Question

P1441 cont.

System recovers when diesel particulate filter parked regeneration is performed using diesel particulate filter cleaning switch after initializing DPF-related information is completed.Control effected by electronic control unit

Injection quantity is limited.

DPF regeneration control is stopped.InspectionService data0F: Exhaust gas temperature 1Electrical equipment#336: Exhaust gas temperature sensor 1Electric circuit diagram Exhaust gas temperature sensor 1 system Other

Insufficient temperature rise of ceramic filter during diesel particulate filter parked regeneration control

Driving style which hardly subjects the vehicle to heavy loads is used or the vehicle is driven in severe operating conditions

Exhaust shutter

Intake throttle

Injector (Have work performed by Bosch.)

Dirty sensing section of exhaust gas temperature sensor

Deterioration of front oxidation catalyst (incorporated in inlet body)

Poor combustion due to use of incorrect fuel

Poor combustion due to use of incorrect engine oil

Ask Your Own Medium and Heavy Trucks Question

Try a parked regen to see if the system will successfully regen without kicking out due to an active fault. If so the system will reset on its own if all repairs are made. In cases where all repairs are confirmed and made but the ECM wont reset, the Diagnostic software will be needed to reset/reflash the ECM and install any software updates.

Please take a moment to rate as that is how the site credits my time helping on the site or let me know if you need more help. 5 star and bonuses are always greatly appreciated.

Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,887
Experience: Owner at DJ Wilson
Verified
Daniel Wilson and 87 other Medium and Heavy Trucks Specialists are ready to help you
Ask your own question now
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Daniel Wilson Your Own Question
Daniel Wilson
Daniel Wilson
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,887
6,887 Satisfied Customers
Experience: Owner at DJ Wilson

Daniel Wilson is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

6,887 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

Related Medium and Heavy Trucks Questions
I have 2013 international pro star. Getting fault code
I have 2013 international pro star. Getting fault code spn2659. What repair do I need to make ? Losing coolant.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,887 satisfied customers
I have an active code of 3375 on ISX engine with in active
I have an active code of 3375 on ISX engine with in active codes 3383, 6263 which has nothing to do with it, 2639, 1921, 2754. I tried to region truck and the aftertreatment injector would not turn on… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,887 satisfied customers
2010 mits fuso down stream temp sensor reading is only
2010 mits fuso down stream temp sensor reading is only reaching about 800-850° wich is too low, what is responsible for heating the unit up?… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2010 mits fuso after regeneration has a code p1441 ( dpf
2010 mits fuso after regeneration has a code p1441 ( dpf temp. sens. 4 abnormal ) during a regeneration what temp readings on scan tool are considered normal… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
2011 Isuzu NPR with 3.0 ecodiesel DPF runs every 30 miles. I
2011 Isuzu NPR with 3.0 ecodiesel DPF runs every 30 miles. I have had DPF backed and cleaned and tested, it passed. Replaced knock sensors a few months ago testing good, replace differential pressure … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
Jeremy, I have an 08 Isuzu NPR HD Diesel 5.2L with and
Hello Jeremy, I have an 08 Isuzu NPR HD Diesel 5.2L with and engine code of P0027. We changed the exhaust valve control solenoid which was the description we got from Mitchell on demand but still have… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,887 satisfied customers
Getting code p1410 after getting the filter cleaned, still
getting code p1410 after getting the filter cleaned, still having frequent regens … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2012 Fuso Rosa bus @ 165,000kms & it keeps blocking DPF & I
2012 Fuso Rosa bus @ 165,000kms & it keeps blocking DPF & I have to do a burn every 100kms … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
Nothing happens when I press DPF switch on Mitsubishi Fuso
I have a Mitsubishi Fuso 2014 FBA60/ 4P10 model and the DPF light is telling me it's full and to press DPF switch. I've tried pressing the DPF switch but nothing happens.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
C4.4 catepillar engine problems code says dpf#1 mean soot
C4.4 catepillar engine problems code says dpf#1 mean soot signal abnormal update rate and sensor supply 2 voltage below normal… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a Fuso fk260 with codes P1412,P0428 and P1421. It is
I have a Fuso fk260 with codes P1412,P0428 and P1421 . It is going into limp mode … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
WORKING ON 2008 ISUZU FVR, KEEPS COMING BACK WITH CODE P244B,DPF
WORKING ON 2008 ISUZU FVR, KEEPS COMING BACK WITH CODE P244B,DPF PRESSURE HIGH. I have removed dpf filter and sent to be cleaned, I have changed dpd sensor,pr sensor and intake temp. sensor.Cleared co… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,887 satisfied customers
2010 mits fuso fe has code p1441 dpf temp abnormal 4
2010 mits fuso fe has code p1441 dpf temp abnormal 4 (manual). red warning light on as well as amber engine light will not regenerate with this code any ideas?… read more
ASETECH2073
ASETECH2073
Branch Manager
Master\u0027s Degree
8 satisfied customers
2008 Mitsubishi Fuso, common causes for: Trouble Code is
2008 Mitsubishi Fuso , common causes for : Trouble Code is P1440 Evaporative Emission ControlTrouble Code is P1441 Evaporative Emission ControlCode P 1421 is clogged or dirty Catalyst (muffler) Code P… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
VIN: JL6BBG1S98K020296 Year: 2008 Make: Mitsubishi Fuso
VIN: JL6BBG1S98K020296 Year: 2008 Make: Mitsubishi Fuso Model: FE84D Engine Type: L4, 4.9L (4899 cc); Turbo-Air CooledWhat is the proceedure for performing a regen on this vehicle? One has not been pe… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
I replaced a DPF on 2008 UD 2000 Read more: http://www.justanswer.com
I replaced a DPF on 2008 UD 2000, but DPF maintenance green light with wrench icon will not turn off, there is no failure code. truck runs good… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 2013 Peterbilt with a 550 ISX. It has 3700 hrs on
I have a 2013 Peterbilt with a 550 ISX. It has 3700 hrs on it and the DPF filter was cleaned at 2700 hrs. A couple of weeks ago it threw a code 3251 (particulate trap 1 pressure). I had a mechanic for… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 2008 Mitsubishi Fuso FE180. Lost alot of power. Codes
I have a 2008 Mitsubishi Fuso FE180. Lost alot of power. Codes appeared P1421 and P1422. I suspect maybe dirty catylst. Would a bad temp. sensor cause this? I cannot get it to regen at all. If it is t… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x