Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

I have many codes that are up onthe screen. Code 102 fmi 18…

Customer Question
Hi.. I have many...

Hi.. I have many codes that are up onthe screen. Code 102 fmi 18 code 1209 fmi 2. Spn 77 fmi 3 spn 1387 fmi 3.

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

Peterbilt(###) ###-####

Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far?

Well.. I can do something yes

Mechanic's Assistant: Anything else you want the Truck Mechanic to know before I connect you?

I already replaced the boost sensor..

Submitted: 2 years ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 48 minutes by:
7/28/2020
Technician: Daniel Wilson,
 replied 2 years ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 15,105
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 follow up with my responses. Professionals are not employees of the site but users of the site and help on here as time allows in between jobs, family,etc. Response time can vary depending on my work load each day but I will always respond back on my next available login. Feel free to respond back at anytime if for any reason we seem to get separated,for status, etc.

SPN:102,FMI:18 -- cummins fault code 125 -- Intake Manifold 1 Pressure - Data Valid But Below Normal Operating Range - Moderately Severe Level. Intake manifold pressure is below the minimum operating limit.
Possible causes of this fault are:

* Leaks in the air intake system between the turbocharger and intake manifold
* A damaged intake manifold pressure sensor
* A damaged barometric pressure sensor
* Restriction in the charge-air cooler
* Leaks or restrictions in the exhaust gas recirculation system plumbing
* Fuel inlet restriction too high (normally caused by a restricted fuel filter)
* Restriction in the air filter
* Restriction in the exhaust system.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 2 years ago
Well just had fuel filters replaced
Technician: Daniel Wilson,
 replied 2 years ago

1209 2 Is an exhaust gas pressure fault code. Thoroughly inspect your wiring harness and connector pins going to the sensor for any type of corrosion or open circuits and if the wiring checks out okay, change the sensor.

Open In Rear Drive Axle Oil Temp Circuit

ECM: PACCAR - Body Controller (2013)

Fault: 7703

SPN: 77

FMI: 3

Rear Drive Oil Temp

This DTC will be recorded when the control unit sees an open at the rear drive axle oil temperature sensor input.

Possible Causes:
1) Broken wire
2) Corroded or disconnected connector
3) Sensor failure

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 2 years ago
I ve never changed out the ail filters
Technician: Daniel Wilson,
 replied 2 years ago

I am still looking up your codes to offer my suggestions. Please be patient.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 2 years ago
The gauge doesnt stay to change the air filters.. I having 2 filters on the truckI looked at the filters. They look to be dirty
Technician: Daniel Wilson,
 replied 2 years ago

Your 1387 FMI 3 fault code is for auxiliary pressure sensor input number two circuit- shorted high. This also translates to Cummins fault code 297 for future reference. Thoroughly inspect your wiring harness and connector pins going to your fuel pressure sensors for any type of corrosion or damage between the sensors and ECM on the engine harness. If this checks out okay including the sensor, there very well could be a problem within the ECM itself. Also, if your filters are contaminated, it would be a good idea to change them but this fault code 102 as you can see in my initial post for that one has multiple codes so you will want to check for any boost pressure leaks in your boost pressure piping as well as your charge air cooler that would cause a loss of boost pressure. As you can see it can also be a faulty sensor as well or a problem within the wiring harness for the sensor. It is best to have the proper diagnostic software connected so you can monitor your sensor and switch status parameters in live time and live data to remove any of the guesswork and possibility of replacing components unnecessarily.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 2 years ago
Do you think changing the ail filters will fix the problem??I dont see anything wrong with the wiringAlso i put a different sensor and the truck ran just fine I'm here at the shop outside and I put the original I bought a newer original sensor and the code still appears on the truck I'm wondering if it's just the air filters that are plugged upBut the gauge doesn't say any vacuum is is showingMaybe I have to have this cleared these codesHello you still there??
Technician: Daniel Wilson,
 replied 2 years ago

If your sensors are okay, you will need to process and eliminate the other potential causes listed below.

* Leaks in the air intake system between the turbocharger and intake manifold
* A damaged intake manifold pressure sensor
* A damaged barometric pressure sensor
* Restriction in the charge-air cooler
* Leaks or restrictions in the exhaust gas recirculation system plumbing
* Fuel inlet restriction too high (normally caused by a restricted fuel filter)
* Restriction in the air filter
* Restriction in the exhaust system.

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 Daniel Wilson Your Own Question
Daniel Wilson
Daniel Wilson
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 15,105
15,105 Satisfied Customers
Experience: Owner at DJ Wilson

Daniel Wilson is online now

Related Medium and Heavy Trucks Questions
I have a 2014 Freightliner Cascadia DD13 VIN6 (FZ2068) that
I have a 2014 Freightliner Cascadia DD13 VIN6 (FZ2068) that has been derating 25% for SPN-102 FMI 18 Engine Intake Manifold #1 Pressure Engine 2 and now it is shutting down completely with some added … read more
Gary A.
Gary A.
Associates in Diesel Technology and Business Management
8 satisfied customers
I have code 0125 active spn 102 fmi 18 Cummins isx any
I have code 0125 active spn 102 fmi 18 Cummins isx any thoughts? I also have spn 2789 fmi 15 and 1569 fmi 31 inactive)… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
80 satisfied customers
My 2006 Kenworth recently pooped 4 codes and lost pressure
My 2006 Kenworth recently pooped 4 codes and lost pressure and boost turbo. The codes that popped first were PID 102 FMI 3 and SPN 102 FMI 3 then about 30 mins later 2 more codes popped PID and SPN 38… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
80 satisfied customers
2021 international mv607 box check engine light with code
2021 international mv607 box check engine light with code SPN:102 FMI:18 OC:1 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
604 satisfied customers
I have 2012 Volvo Vnl 670 and got ISX15 Cummins engine. I
Hi I have 2012 Volvo Vnl 670 and got ISX15 Cummins engine … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
80 satisfied customers
I have a Cummins motor with fault codes SPN 1387 FMI 3 and
I have a Cummins motor with fault codes SPN 1387 FMI 3 and SPN-157 FMI 18 can you tell me what is wrong … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
80 satisfied customers
Cummins ISX 15 550 hp on a PeterbiltShowing fault codes: SPN
Cummins ISX 15 550 hp on a Peterbilt(###) ###-####Showing fault codes: SPN 641 FMI 9 SPN 77 FMI 3 Derate in 3 hours. Truck was parked off for 4 days, first showing code out of nowhere was the SPN 641 … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
80 satisfied customers
International Maxxforce Engine Code SPN 102 FMI 18. No 14
International Maxxforce Engine Code SPN 102 FMI 18 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
604 satisfied customers
I have a diagnostic code. SPN 102 FMI 18 I ask is it
I have a diagnostic code. SPN 102 FMI 18 I ask is it possible for roadside to service this.… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I got SA 0 SPN 3610 FMI 2, what's wrong with my truck? Also
Hi I got SA 0 SPN 3610 FMI 2, what's wrong with my truck? … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
604 satisfied customers
What does code Sa 0 spn 102 fmi 18 mean. I have a 2017 Volvo
What does code Sa 0 spn 102 fmi 18 mean. I have a 2017 Volvo with a cummins … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
604 satisfied customers
I have a couple of codes son -102 FMI -18. And spn 1209 FMI
I have a couple of codes son -102 FMI -18. And spn 1209 FMI 16 … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I have SPN 1569, 5246, 5746, and 1387 and stop engine
I have SPN 1569, 5246, 5746, and 1387 and stop engine immediately … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
604 satisfied customers
2014 Int prostar/ navistar motor. Code 000102. 2014 int
2014 Int prostar/ navistar motor. Code 000102 intake manifold pressure low boost… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
604 satisfied customers
2014 peterbilt 579 cummins isx15 light in dash in shspe of
2014 peterbilt 579 cummins isx15 ***** *****ght in dash in shspe of engine with a wrench in it and fault codes system engine spn: 1209 FMI:4, system engine spn:1209 FMI:2, system engine spn:1569 FMI:3… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
2013 prostar+ with maxxforce 13 egr high low rate detect SPN
2013 prostar+ with maxxforce 13 egr high low rate detect SPN 2659 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
15,105 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
15,105 satisfied customers
I have a 335 modle 6.7 litter paccar with my snap on modis
I have a 335 modle 6.7 litter paccar with my snap on modis scanner I pulled pid codes 108 102 131 103 27 all to do with the turbo now the turbo is broken impeller shaft and truck has been over heated … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 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.

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

15,105 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

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