RV.Net Open Roads Forum: 3126B Code 71 and then 15 and 39

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  All

 > 3126B Code 71 and then 15 and 39

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Sponsored By:
map40

Florida

Senior Member

Joined: 01/15/2005

View Profile



Posted: 11/18/20 04:23pm Link  |  Quote  |  Print  |  Notify Moderator

OK, so my 2000 Safari Sahara drives excellent for 10 minutes and then check engine light turns on and you can't got pass 45. When I brought it home I drove 60 miles at 45, all temperatures we perfect and rode great. Every so often the check engine light would go off and the RV would take off to 80MPH with no problem.
But every time I slowed down the check engine light would turn off. Today it stayed on so I could get the codes.
First I got code 71.
I let it run for a few minutes, did it again and got 71, 15, 39.
Anybody has any experience with these? It has to be a bad wire or sensor, because the minute the code clear it goes like a bat out of hell, no problem.
Any help will be greatly appreciated!


Alfa SeeYa, 2015 Jayco XL31, 2015 Itasca XL31, 2012 CA 25, 2008 CA 28. RV with most millage: 312K miles on a V10
Life rocks when your home rolls

K Charles

Connecticut

Senior Member

Joined: 03/06/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 11/18/20 07:20pm Link  |  Quote  |  Print  |  Notify Moderator

39 is an injector accuation pressure malfunction but 15 is a sensor fault. Check the wire harness or maybe a bag senser.





map40

Florida

Senior Member

Joined: 01/15/2005

View Profile



Posted: 11/18/20 07:56pm Link  |  Quote  |  Print  |  Notify Moderator

K Charles wrote:

39 is an injector accuation pressure malfunction but 15 is a sensor fault. Check the wire harness or maybe a bag senser.

I thought the same. I don't believe that the codes are real, because they are all electrical (sensor, power, and then some), but then all of the sudden everything is OK. If just knew where where the wire is routed and which cable to trace for fault 71, I think the rest will disappear.

doxiemom11

Victoria TX

Senior Member

Joined: 01/09/2013

View Profile



Good Sam RV Club Member

Offline
Posted: 11/18/20 08:29pm Link  |  Quote  |  Print  |  Notify Moderator

Our Jeep did that and it was a Throttle Position Sensor - did what your is doing, then starting shifting not quite right, then couldn't get over 30 mph.

ArchHoagland

Clovis, CA, USA

Senior Member

Joined: 11/28/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 11/18/20 11:55pm Link  |  Quote  |  Print  |  Notify Moderator

What engine?


2004 Monaco La Palma 36DBD
Workhorse W22 8.1 Gas Allison 1000, 7.1 mpg

2000 LEXUS RX300 FWD 22MPG 4020 LBS
US Gear Brakes


map40

Florida

Senior Member

Joined: 01/15/2005

View Profile



Posted: 11/19/20 06:10am Link  |  Quote  |  Print  |  Notify Moderator

ArchHoagland wrote:

What engine?

Cat 3126B

wallynm

Los Alamos NM

Senior Member

Joined: 09/27/2000

View Profile


Offline
Posted: 11/20/20 09:17am Link  |  Quote  |  Print  |  Notify Moderator

Post to the diesel club as referenced in my signature. They have a retired CAT representative on that site.


Have a Diesel Engine Diesel RV Club

Have a Freightliner FCOC Web Page

Living on the memories now
EX 02 DSDP 3567
EX 99 Coachmen
EX 86 Georgie Boy
EX 75 Winnie
EX 72 Sightseer
EX 68 Brave

THOSE THAT DO NOT KNOW HISTORY ARE DOOMED TO REPEAT IT


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  Class A Motorhomes  >  All

 > 3126B Code 71 and then 15 and 39
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.