Mileage off on computer - 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 05-27-2012, 11:20 AM
Compression Ignition Addict
 

Join Date: Nov 2009
Posts: 222
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Mileage off on computer

2 weeks ago I installed a DP tuner and reset the computer for mileage. I have only ran about 1/2 of tank of fuel so I don't have any real numbers on mileage. But the computer is showing 28.3 mpg. Has anyone had the same problem? With my superchips I had, the best I was getting was 17, and the computer still said 23. Is there a way to recalibrate it?


Sent from my Autoguide iPhone app

Last edited by early99psd; 05-27-2012 at 11:57 AM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 05-27-2012, 04:06 PM
Compression Ignition Addict
 

Join Date: Nov 2009
Posts: 222
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Am I the only one with this problem?


Sent from my Autoguide iPhone app
Reply With Quote Quick reply to this message
  #3  
Old 05-27-2012, 04:16 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,036
Thanks: 0
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
It's called a lie o meter for a reason
Reply With Quote Quick reply to this message
  #4  
Old 05-27-2012, 04:25 PM
Compression Ignition Addict
 

Join Date: Nov 2009
Posts: 222
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Why are they so far off? Is it because of the chip and bigger tires ( 305's)?


Sent from my Autoguide iPhone app
Reply With Quote Quick reply to this message
  #5  
Old 05-27-2012, 04:48 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,036
Thanks: 0
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
It's cause they aren't usually right at first.
Some trucks are close, but a lot aren't. It's a combo or lift, tires, tuning, mods, and anything not stock.
Reply With Quote Quick reply to this message
  #6  
Old 05-30-2012, 10:10 AM
Compression Ignition Addict
 

Join Date: Dec 2006
Location: Logan Utah
Posts: 183
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yeah mines way off as well with a DP Tuner. The Edge Insight actually seems to be pretty dang correct however. I use the mileage coach feature and try hard to stay at 20-21mpg Only on tanks that I never blow smoke with What tunes do you have on your DP?

I have
1-Stock
2-+80hp Daily Driver
3-+60hp Tow Mode (I get way HOT with this! I tow on stock now!)
4-+120hp Race Mode
Reply With Quote Quick reply to this message
  #7  
Old 05-30-2012, 11:04 AM
Compression Ignition Addict
 

Join Date: Nov 2009
Posts: 222
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have no start, stock, 60e, 80e, decel, 40 tow, 80 tow, 120 race. The only thing I have towed was to quads with the 80 tow and loved where the why was and the way the trans was shifting. Why is yours getting hot? Do you have a boost leak?


Sent from my Autoguide iPhone app
Reply With Quote Quick reply to this message
  #8  
Old 05-30-2012, 11:13 AM
Compression Ignition Addict
 

Join Date: Mar 2010
Location: Clear Spring , Md
Posts: 275
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have the edge insight, and sometimes it shows I get up to 24 mph, but when I do it via math, I only get 17 to 19 at best. Less than that if im getting on it. Now I know why people on this site post all kind of crazy mileage, i bet they are just going off their guages.
Reply With Quote Quick reply to this message
  #9  
Old 05-30-2012, 12:40 PM
Compression Ignition Addict
 

Join Date: Nov 2009
Posts: 222
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Not going off the gauges for real numbers, just wondering why it's so far off?


Sent from my Autoguide iPhone app
Reply With Quote Quick reply to this message
  #10  
Old 05-31-2012, 12:44 PM
Compression Ignition Addict
 

Join Date: Mar 2010
Location: Clear Spring , Md
Posts: 275
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I think it just takes a mathmetical average over time, there fore if you coast alot you get a real high average, for instance I get better mileage acording to my insite when i drive over the mountains, clearly this is not true, But what happens is when you are drifting down hill the truck reads 100 mpg and that throws off the mathmatical average. When I drive on flat ground without a lot of coasting the computer reads pretty close.
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 04:58 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