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I have a 1999 Cobra that has custom wheels and Goodrich 18 inch tires.
The speedo is 13/14 mph SLOW..
Other than the dealer is there any other way to correct the error?
Does this slow speedo effect other functions of the cars computer?
Thanks for the help .
I have only owned her 1 week and 1 trip averaged only 18 mpg with no frogging her ,car only has 54,000 miles on her and a coolair filter stock gearing.
Thanks for any help.
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Thanks for the reply.
Do you guys think I should buy a hand held tuner like hyperjet?
Reading that I can fix the speedo issue and tune ( flash the computer)
Is this the right thing to do ?
Thanks again for the help
Got the Cobra tuned and the Speedo fixed all at once.
Great people at the Car Dr. They set her up did the tune and fixed the speedo for $65.00 .
Wow now I can buy some more gas.
Thanks to all that helped on my problem
This is a great site.
Yes I did,, Checked many places and estimates first. I guess Sales are down at Ford and they are pushing service they wanted $ 140.00 just to recalibrate the speedo.
Took it to the Car Dr. and they tuned because I had installed cold air system and a few other mods they adjusted the speedo to bring it up right, took them two tries on speedo and a little over an hour for all. Glad there are still some honest people out there..check arround before you try.
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