2001 lb7 injectors or ficm - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

 
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 01-06-2020, 12:46 PM Thread Starter
 
Join Date: Jan 2020
Posts: 2
2001 lb7 injectors or ficm

Just recently started driving my 2001 lb7 again after rebuilding the front end completely. Ran and drove wonderfully, recently replaced the cp3 as well. anyway a few days after i had started driving it again i was driving down the highway running about 70 75, no problems until i turned off the highway. i Stepped off in in and it sounded like a 6.0 power stroke. never showed any codes until i had driven it with this problem for a few days. when it did show a code it was p0203 i believe which would be cylinder #3 injector wiring fault. i had been driving it with only one battery and i have read that if there is not enough voltage going to the ficm it can fry it or at least screw with it. ive ran the injector rates and all of them were -4 or -5 but #1 #3 and #7 and they were +1. theres no blowby what so ever so i dont believe it dropped a injector tip. if anyone can help me that'd be great. thanks!
wtsLB7 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy and GMC Duramax Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in













Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome