Loaded tune from SCT now speedo is way off - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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 03-07-2013, 02:54 PM
Compression Ignition Addict
 

Join Date: Sep 2007
Posts: 552
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 3 reviews
Loaded tune from SCT now speedo is way off

So a little background. Turbo went out about a month ago and had it replaced under warranty. Warranty paid for most of a Powermax turbo. Get the Powermax on and like most said had a little bit of low end lag. So went looking for a tune to get rid of the lag and be able to tow if needed. Decided to go with Matt's 8k tow tune. Tune is great, shifts nice, no more lag and the EGTs have dropped.

So now onto the problem. The speedo is now off, it says I am going about 5 mph faster than I am really going. Before the tune it was dead on. I had calibrated it using the Superlift Truspeed.

So what can be causing this??? I did notice that the SCT asked me if I would like to calibrate my speedo and I said no. I did change under the options section my tire RPMs and my gear ratio. But I thought that only changed the shifting points. Please help.....
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 03-07-2013, 02:59 PM
Compression Ignition Addict
 

Join Date: Jan 2013
Location: Auburn, In.
Posts: 395
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
I always use my cts for that so it never changes but not sure if u can do that on just the insight !! It should have a place to enter stock tire size and then ask for new tire size then as long as thats plugged in your speedo is always on !
Reply With Quote Quick reply to this message
  #3  
Old 03-07-2013, 03:02 PM
Compression Ignition Addict
 

Join Date: Sep 2007
Posts: 552
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 3 reviews
I think you are talking about something else. I am talking about the trucks actual speedometer. I guess I could just readjust my Truspeed to match the correct speed.
Reply With Quote Quick reply to this message
  #4  
Old 03-07-2013, 03:05 PM
Compression Ignition Addict
 

Join Date: Jan 2013
Location: Auburn, In.
Posts: 395
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
So am I on my edge insight cts if I enter stock tire height and then after market tire height and its plugged in to my truck like it always is it automatically corrects my factory in the dash speedo for my bigger tires !!!
Reply With Quote Quick reply to this message
  #5  
Old 03-07-2013, 03:10 PM
Compression Ignition Addict
 

Join Date: Sep 2007
Posts: 552
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 3 reviews
Thats the first I've ever heard of the CTS changing the vehicles speedo. I thought it was just a monitor. I don't see how that would have any effect of the trucks speedo.
Reply With Quote Quick reply to this message
  #6  
Old 03-07-2013, 03:11 PM
Compression Ignition Addict
 

Join Date: Jan 2013
Location: Auburn, In.
Posts: 395
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Talking

Mine was like 3-4 off for almost 2 years before I realized I could use my insight for that !! If u need help shoot me a personal message and I will help u with it !!
Reply With Quote Quick reply to this message
  #7  
Old 03-07-2013, 03:55 PM
Compression Ignition Addict
 

Join Date: Jan 2013
Location: Auburn, In.
Posts: 395
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Talking

Ok on mine u go to the options menu click on that then it should say tire size click on that then all u have to do is enter your stock tire height (I found mine in my fuel door) then enter the size your tires r now either metric or standard and its done !! Your speedo will be correct mine is about a 1/2 mph off but it's close enough for me !! U r correct it is for gauges but speedo is controlled by computer and insight is able to read gauges and codes from computer and even clear codes !! Good luck !!
Reply With Quote Quick reply to this message
  #8  
Old 03-07-2013, 04:49 PM
N.S.D.Q.

 

Join Date: Oct 2007
Location: Middle VA
Posts: 4,012
Thanks: 9
Thanked 44 Times in 35 Posts
Feedback Score: 3 reviews
I'll need to try using the CTS. I've used the SCT to correct my speedo spot on with my GPS.
Reply With Quote Quick reply to this message
  #9  
Old 03-07-2013, 04:58 PM
Compression Ignition Addict
 

Join Date: Jan 2013
Location: Auburn, In.
Posts: 395
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Its nice because once its set u never have to mess with it after u change your tunes !!!!
Reply With Quote Quick reply to this message
  #10  
Old 03-07-2013, 05:04 PM
N.S.D.Q.

 

Join Date: Oct 2007
Location: Middle VA
Posts: 4,012
Thanks: 9
Thanked 44 Times in 35 Posts
Feedback Score: 3 reviews
Strange since my Speedo is dead on and the trip odometer is 1% off.
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 01:21 PM.


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