Requesting help to get my speedometer to read correctly
11-29-2014, 01:22 PM
#1
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Requesting help to get my speedometer to read correctly I recently put 3.90 gears in and my speedometer ended up being off. My tires are stock height. The gear ratio has already been changed to 3.90 via HP Tuners. But the speedometer still doesn't read the right speed. I did a bit of searching and found that in HP Tuners, there is something called "VSS output pulses per mile", and that I need to enter the correct value and my speedometer should read correctly. However I don't have a clue what the correct value would be... So my question is, is there a set value that should be correct? Or is there a bit of trial and error involved, trying different values until I get it right? Thanks in advance for helping.
12-21-2017, 11:43 AM
#4
TECH Senior Member
Let's hope the OP sees this 3 yrs later...