99-03 7.3L Performance Discussion of 99-03 7.3 Liter Ford Powerstroke Turbo Diesels Related To Performance And Longevity

tunes

Old May 19, 2010 | 10:18 AM
  #31  
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Default fuel leak

it was the seperator, but he said he could fix it but my truck would be down for a few days on account of how busy he is right now, so i will just wait to get it fixed and done with
 
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Old May 25, 2010 | 02:23 PM
  #32  
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Hey Joe. I get 19 with mixed driving. Why wouldn't someone else get more?
 
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Old May 26, 2010 | 12:03 AM
  #33  
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is that off your overhead display?
 
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Old May 26, 2010 | 06:56 AM
  #34  
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Umm... No.
 
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Old May 26, 2010 | 07:50 AM
  #35  
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u would be surprised how many people believe those things... haha according to mine i get 45 mpg, but i agree with u because i can get 18 and ive got diesel leaking everywhere
 
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Old May 26, 2010 | 08:08 AM
  #36  
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I don't have a Lie-O-Meter on my truck... It didn't come with any of those neat gadgets...
 
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Old May 27, 2010 | 10:50 AM
  #37  
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45? wow, mine isn't THAT far off ha
 
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Old May 27, 2010 | 03:46 PM
  #38  
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yea and when i fill up sometimes it says that i have 999 miles to empty. i dont think i can go quite that far
 
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Old May 28, 2010 | 12:37 AM
  #39  
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yeah, give or take a few miles
 
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Old May 29, 2010 | 12:45 AM
  #40  
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Originally Posted by Lange503
just what the overhead says, i know its not the most accurate but when it drops my actual mileage has to go with it too, never put the calculator to it
A little education on the lie-o-meter and why it's inaccurate the second you tune the truck.

It uses the TPS (throttle position sensor) to help it gauge how much fuel the truck is using.

At 50% TPS on stock tuning your PW is Xms @ XXXX ICP.

With a tune, your PW will be wider, and your ICP will possibly be higher as well. Resulting in more fuel injected at the same 50% TPS.

You however, are now using less actual throttle travel to drive around, since you have more power availible. So, the lie-o-meter starts living up to it's name.

Make sense?

The reason your lie-o-meter told you that you were gettin worse milage with PHP tunes than you were with the sniper tuning, is probably because Bill has one of the nicest pedals to daily drive that you can ask for. So, the TPS isn't lying to the trip computer quite so much.

I bet your throttle was more touchy with sniper tuning than it is with the PHP, right?

There was a huge difference on my lie-o-meter when I switched from DP tuning (super touchy pedal), to PHP tunes (almost stock pedal).
 

Last edited by Chvyrkr; May 29, 2010 at 12:48 AM.
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