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MX5 Miata NA6 PNP Tach Output

PostPosted:Tue Oct 13, 2020 12:56 pm
by tx_haggis
Background: installing a BP4W (VVT) into a 1990 NA Miata

I've wired ECU pin 2I direct to the tach (by joining the yellow/blue and black/white wires at the ignitor). Do I:
  • Do nothing? :D
  • Set the tach output in software?
  • Install a jumper on the tach pins on the board?
Or some combination of the above?

Re: MX5 Miata NA6 PNP Tach Output

PostPosted:Mon Oct 19, 2020 2:03 am
by mater36
I did this on a 92 miata with a vvt engine as well. Tach output is just like you said. I connected the two pins at the igniter and used the jumper. The default settings for the tach output on tuner studio worked just fine.

Re: MX5 Miata NA6 PNP Tach Output

PostPosted:Wed Nov 25, 2020 10:06 am
by pani
How is the project going?