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Old 01-08-2009, 10:34 AM
Mercury Mercury is offline
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Fkirst Jbier... i said this a few posts back, maybe you missed it

"I do not visit all the forums as often as I should, but yes there is a inline device that will work on the 08 F250, as a matter of fact there are many on F450's from 2008

as for programmers, i do not know of any, but for inline devices....

speed wizard by merlin controls I would think the truspeed would work as well but I hear people say no it don't....

kenny "


Quote:
Originally Posted by Dusten View Post
yes and no. anything that reprograms the computer to think it has bigger than 35's will trip the abs light. the devices they are talking about take the signal from the vss and change it, so the computer see what it wants. i dont like this idea, its not a true fix, just a fooler.
LITTLE LONG SORRY ABOUT THAT>>>


Dusten, would you care to elaborate on why an inline device is not a "true" fix, in essence you are doing the same thing as reprogramming the computer...

instead of 1 revolution = Y pulses you are making 1 revolution = Z pulses.

I have witnessed more people have more success with inline devices then I have ever seen with programmers and dealerships, at least for getting the speed signal to be accurate.

to bring up another question... if ford offers an off road tire that lets say has a 1" larger diameter, do they then reprogram those trucks for the new size? I am 95% sure they do not, so all those people are riding around with the wrong speedo... As a matter of fact, take a stock truck and compare it to GPS, mine was off by about 2% to start with STOCK.

so to call a inline device a "fooler" may be an ok statement, but then a dealership can be called a fooler too by fooling the computer into thinking it has something other then stock.

Also with an inline device the VSS is not changed directly, it is the signal AFTER the ABS module that will be modified, the VSS is only one part of 3 sources to tell vehicle speed; at least based on my experience.

I would be open for discussion on this, the speed signals on these trucks fascinate me, so i am always open to learn something new.

kenny
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