I have swapped out my CQ cluster to one from an '88 90q on my V8 coupe running VEMS in order to diagnose a non-working tach.
Now the tach works but I am a little high on the dial vs the VEMS display.
I have 1200 at about 1000 and 3800 at about 3200 - so we're about 20% high. The divider is currently set to 22 on the output. do I just mess with that # until they agree?
Also, the VEMS display shows my speed super high while the Speedo on the cluster shows it at what I believe is correct. could that make my odometer not work? Also, I feel like that is only out of whack on the tablet - not my laptop.
Fine Tuning tachometer / odometer
Fine Tuning tachometer / odometer
CURRENT
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928
PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
1995 90 Quattro 20VT - 1987 Porsche 924S - 1979 Porsche 928
PAST
1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1986 Audi Coupe GT - 1995.5 Audi S6 - 1994 Cabriolet - 1993 Audi V8 - 2013 A5 - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
Re: Fine Tuning tachometer / odometer
change divider to 16