Atlas 40 FICM Tune - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-14-2012, 12:43 PM
Powerstroke.org Rookie
 

Join Date: May 2012
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Atlas 40 FICM Tune

I had Ed at FICMrepair.com fix my FICM and put the Atlas 40 tune on it. My truck is stock other than straight 4" exhaust and blue spring fuel pressure upgrade. Ed did a great job and I've gained 2-2.5 mpg. I wanted to ask you guys that also have the Atlas 40 tune if it changed the way your exhaust sounds--especially right after cranking. After starting my truck the exhaust sounds normal for a few seconds, then it sounds like someone put a bucket over my tailpipe for about a second and then it alternates between sounding normal and sounding muffled a few times. Is this something the Atlas 40 is causing? I never noticed it before I fixed and tuned my FICM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-14-2012, 12:52 PM
Powerstroke.org Rookie
 

Join Date: Jul 2012
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Were you up to date on your ECM strategy (VXCF9N4) before the FICM tune? Mine started sounding exactly like what you are describing after it got updated. I believe it is the vanes on the turbo cycling to help prevent sticking at idle.
Reply With Quote Quick reply to this message
  #3  
Old 07-14-2012, 01:31 PM
Powerstroke.org Rookie
 

Join Date: May 2012
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I had my ECM flashed at the Ford dealership in 2008 or 2009 in order to get the inductive heating strategy try to help my cold start issues. It hasn't been flashed since. From what I understand, the Atlas 40 tune changes the way the inductive heating works causing the injectors to heat in sequence instead of all at the same time to decreased the power drain and the strain on the FICM.

So, is this sound normal? Should I have the ECM flashed? I plan to do an EGR delete soon and don't want to have to buy a tuner, so I'd rather not get the flash that sets the check engine light.
Reply With Quote Quick reply to this message
  #4  
Old 07-14-2012, 04:32 PM
Powerstroke.org Rookie
 

Join Date: Jul 2012
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
My truck has sounded that way for about two years now. I'm guessing it's fine.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke 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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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



All times are GMT -8. The time now is 12:44 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors