Fine Tuning tachometer / odometer

Discuss VEMS and other standalone ECUs

Fine Tuning tachometer / odometer

Postby Grillage » Sat Nov 28, 2015 5:47 pm

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.
1995 90 Quattro 20VT
1994 Cabriolet - 5 speed

1993 Audi 90 CS Quattro - 1990 CQ - V8 - 1995.5 Audi S6 - 1993 Audi V8 - 2013 A5 Prestige - 2011 A4 Avant - 1986 Maserati Biturbo Spyder
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Re: Fine Tuning tachometer / odometer

Postby bdcoombs » Mon Nov 30, 2015 11:50 pm

change divider to 16
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Joined: Apr 23, 2014

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