J1850 VPW convert to 8192 aldl (Tacho signal)

[rostkov]

Congratulations. The question is, is it possible to write code to extract the tachometer data (rpm) from the J1850 VPW standard and convert it to the ALDL 8192 protocol.
Since I did a 1988 Buick Regal L67(3800 st,2) swap.
I apologize, maybe I didn't explain it that way.
I need a signal for my electronic tachometer which used to get it just from the diagnostic wire when the 1988 engine was standing. Now the motor is 1998 and the standard is J1850 VPW.
Thank you.

[rostkov]

I found a project on the forum that should solve my problem. But he does it with the help of Arduino and takes the signal from the ICM. I did so used his code. But for some reason the indicator is incorrect for 800 singles instead of 2200. That is why other options are of interest.
http://www.gearhead-efi.com/Fuel-Inj...-project/page2