Originally Posted by
Tre-Cool
Hello, my car has a 3.7 diff gear and the engine tune has been modified to correct the speedo on the dash, however no matter what i change in the auto calibration the speed being logged via efilive is around 28% (more) out of what the dash is showing.
As such all the VSS and RPM shift points have to be calculated off this 28% outage.
For example:
1st to 2nd change: Cal = 60kph.
Actual speed shift changes at is around: 46kph
5th to 6th: cal = 96kph
actual speed = 80kph
Is this a known problem with the A6 calibrations? coz it makes it hard when trying to log the auto and to perfect shift time for the drags.
I want to get this working properly as i have a circle'd 3500 stall coming for it.
Would prefer to email tune to efilive than post on forum.