Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

Have cat c-15 acert ser#sdp21135 with active code 3830-3 for…

have cat c-15 acert ser#sdp21135...
have cat c-15 acert ser#sdp21135 with active code 3830-3 for aftertreatment #1 secondary air differential pressure voltage above normal and won't let it regen where do we need to start?
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 46 minutes by:
3/15/2018
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 9,404
Experience: I am ASE Master Truck Certified.
Verified
Thanks for asking your question. I will try and help you out.
This code indicates an open circuit to the sensor. Most likely a failed sensor. But it can be a broken wire in the harness. I would check the harness first. If ok. I would replace the differential pressure sensor for the combustion air. I’ll get you a pic of it. It’s number 13.
Ask Your Own Medium and Heavy Trucks Question
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 4 months ago
what is the sensor called so I know what to ask for
It’s called the differential pressure sensor for the combustion air.
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 9,404
Experience: I am ASE Master Truck Certified.
Verified
Cat Man and 87 other Medium and Heavy Trucks Specialists are ready to help you
Ask your own question now
Customer reply replied 4 months ago
checked wiring had 5 volts and ground so replaced sensor codes went inactive and performed regen. It ran one day and same code came back any ideas?
I see. Thanks for the information.
Sounds like you may have an intermittent problem in the engine harness.
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 4 months ago
Is there anyway to check it or just replace the harness?
Unfortunately with intermittent codes there is no way to test. Sorry. -3 codes are caused most often by the sensor. When it’s not the sensor. It’s either the harness or ecm. Very rarely is it the ecm.Please reply back if you need more help or have more questions. I am happy to assist.
Ask Your Own Medium and Heavy Trucks Question
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 Cat Man Your Own Question
Cat Man
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 9,404
9,404 Satisfied Customers
Experience: I am ASE Master Truck Certified.

Cat Man 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

2,775 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,404 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,869 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,235 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

1,337 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

961 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
Daeling with active codes that will not clear on Cummins
Daeling with active codes that will not clear on Cummins Insite software. Active Code 1922 on my 2011 Freightliner M-2 Business Class Cummins Engine. have taken the DPF filters off and had cleaned at … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
2009 Pete 386 will not regen due to brake pedal depressed.
2009 Pete 386 will not regen due to brake pedal depressed. wiring diagram of switches and locations please. should be going to pin 37 and 38 of ECM OE harness… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
Wayne, I've got another one for you. Same truck that I'm
Hey Wayne, I've got another one for you. Same truck that I'm working on the outside air temp sensor location. I also have a 373-3 fault code for the differential pressure sensor. I have replaced the s… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,869 satisfied customers
We have a 08 sterling acterra with a cummins isc315 has
we have a 08 sterling acterra with a cummins isc315 has check engine light will not rev above 1500 rpms says ecu 128 SID 068 PID 111 SPN 3251 spn 111 spn 5018 we replaced the coolant level sensor it s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
Jeremy, I have a a 2012 Volvo with a D13 that just threw out
Hey Jeremy,I have a a 2012 Volvo with a D13 that just threw out two codes and is asking for a parked regen. I have tried to do a parked regen but it start the process and about 5 min into the regen it… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
Cat c-15 SDP serial # with active code for aftertreatment
cat c-15 SDP serial # with active code for aftertreatment #1secondary air differential pressure voltage above normal. changed sensor and came back after about 20 miles any ideas… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,404 satisfied customers
2009 freightliner cummins j1708 eng just had exh filter
2009 freightliner cummins j1708 eng just had exh filter cleaned but cant clear the 324 &380 to make the truck go more then 10mph any ideas? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
Have a 2009 business class m2 cummins with engine protect
have a 2009 business class m2 cummins with engine protect light on. getting a pid code 324… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,337 satisfied customers
I have a cummins isx. Just had the dpf replaced. Still have
I have a cummins isx. Just had the dpf replaced. Still have fault code 2639 … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,337 satisfied customers
Some trouble codes on an isx engine , trouble code 1878
Customer: some trouble codes on an isx engine JA: Thanks. Can you give me any more details about your issue? Customer: trouble code 1878 2374 and 1876 JA: OK got it. Last thing — JustAnswer charges a … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,337 satisfied customers
2012 Ihc 7400 466 engine, black smoke, no power vin#
2012 Ihc 7400 466 engine, black smoke, no power vin# ***** no engine light now, did not hook up computer to see if there is some. Guy was driving it no power black smoke and it was going into shut dow… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
Have a C13 with codes 3719 & 3830. Did DPf shake & bake, codes
Have a C13 with codes 3719 & 3830. Did DPf shake & bake, codes will not clear. Does this have to go to cat to get codes clear… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,404 satisfied customers
, I own a Freightliner 2009 vin # ***** with a C15
Hello, I own a Freightliner 2009 vin # ***** with a C15 engine, Serial # ***** I am having problems with regen. Here are some of the codes I am getting. ERROR CODE: 112D - aftertreatment air flow to l… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,404 satisfied customers
Dr Cummins we have a freightliner m2 partybus at the
Dr Cummins we have a freightliner m2 partybus at the shop that came with amber and red engine lights .engine is cummins isl and there are 2 codes presented at the time of inspection 1: egr out of cali… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,337 satisfied customers
I am working on a 2008 Kenworth with Cat C-15. The truck has
I am working on a 2008 Kenworth with Cat C-15. The truck has been in the garage here for quite some time, very clean,well maintained truck. It has had numerous regen problems over the past few years a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,404 satisfied customers
Catman. Another question please sir. 209 Peterbilt c15. Will
Catman. Another question please sir. 209 Peterbilt c15. Will not regen dash warnings are DPF secondary air diff pressure and particulate trap outlet temp. with the computer the code is aftertreatment … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,404 satisfied customers
i have a caterpillar code 3830-3 aftertreatment #1 secondary
i have a caterpillar code 3830-3 aftertreatment #1 secondary air differential pressure voltage above normal. what is the diagnostic procedure for this code? i also now have a failed to ignite code fro… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,404 satisfied customers
on a 2010 m2106 freight liner with a bummins 5.7L, what are
on a 2010 m2106 freight liner with a bummins 5.7L, what are the fault codes 380,324,101? Just replace the ERG cooler… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,337 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