tachometer signal

[Cody]

On my MS installs on my 5ktq's I just spliced into the tach wire from the MAC-11. Works great, super clean signal, and no effect on the tach.

-Cody Forbes
Black Forest Racing
2x '86 5ktq
'87 5ktq EFI
'88 80 4cyl


---------- Original Message ----------------------------------
From: Alan Pritchard <apritchard at seaeye.com>
Date: Mon, 1 Dec 2003 15:39:50 -0000 

>DOH. In my megsaquirt planning I never considered that!! What does the tacho
>want to see? A rising voltage? Or something like a pwm signal??
>thanks
> -----Original Message-----
>From: 	JShadzi at aol.com [mailto:JShadzi at aol.com] 
>Sent:	01 December 2003 15:24
>To:	billzcat1 at hotmail.com; quattro at audifans.com
>Subject:	Re: tachometer signal
>
>I assume you're referring to your Coupe?  The T89 cars have a tach signal
>from the ECU, we created a tach output for 034efi to run the tach signal,
>the stock tach will run off most any "tach signal", but IME it doesn't run
>off the coil.
>
>Javad
>
>>Hello All!
>>Does anyone know how the tachometer interprets the signal on a 5-cyl?  Does
>>it take the standard signal from the coil (5 pulses every 2 revolutions)?
>>
>>Thanks in advance
>>Richard
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