Need Speedo ReCal HELP?????

[sliver02GT]

i got my speedo recal put in today but my mph is still way off, the setting it says to put in on for my 4:10s isnt working, is there anything i am doing wrong

thanks

 

[Blakers01GT]

i got my speedo recal put in today but my mph is still way off, the setting it says to put in on for my 4:10s isnt working, is there anything i am doing wrong

thanks

hmmmm, yeah, hate to say this but start from scratch, follow instructions VERY carefully. what kind of speed cal is it? and you installed it right?

If I had to do it all over again, i would have gone with a ECU flash, then you can take care of you timing, air fuel, gear recalibration etc. good luck, be more detailed as too whats wrong.