[Diy_efi] Flap-type Airflow Meters

[Steven P. Donegan]

Now - if someone can just map those steps to airflow numbers I can make
a GM frequency MAF to flapper MAF voltage translation table. Which will
allow those of you out there who want to run 80mm MAF's on your (pick
engine) car :-) That circuit board is already built - that's my little
MAF interceptor project...

On Fri, 2007-01-12 at 15:23 -0500, ScottyGrover at aol.com wrote:
> Dan was asking about these Bosch/Nippon meters and how they were
> calibrated. 
> I put 12VDC between pins 6 and 9 and hooked a voltmeter between pins
> 6 and 
> 7. I then rotated the toothed wheel on the end of the rotating shaft
> and  this 
> is what I read:
> Base       1.29V
> 1 tooth     1.75V
> 2 teeth     2.7V
> 3    "        4.3V
> 4    "        5.3V
> 5     "       5.9V
> 6     "       6.5V
> 7     "       6.8V
> 8     "       7.3V
> 9     "       7.6V
> 10   "       7.95V
> 11   "       8.05V
> 12   "       8.2V
> max         8.21V
>  
> I hope this helps.
>  
> Scotty