have a honda firewall map (denso pn:079800-1771 5v, ps-20) i need the exact voltage per psi of boost. i have looked for hours and have found nothing.yes i know i can use all sorts of other sensors but i have this one and it is free.

thanks guys

 

Honda has loved the 1.75bar for many of their cars. The only difference seems to be the max/min readable pressures due to the design. Do you know what chassis it comes from?

Feed it 5 volts in free air, measure the output voltage, and if it's like a regular 92-00 TB sensor (1.75bar, ~2.8v) then it's a 1.75bar. Otherwise extrapolate with a linear line, with -14.5psi falling around 0.1v, and the max falling around 4.8v or 4.9v.


Pray tell, why do you need the exact voltages? Most tunes will be different enough where a rough basemap will need heavy adjustments anyways.

 

how much is time worth?

human life expectancy is 78 years, how much of it will you waste?

 

Its for my turbo bike. And its only going to run around 10-12 psi of boost so I don't really see the need to use a gm 3 bar for 100$ just becuz the info is esayer to find.I have more time them $$ and I didn't really think it would be this hard to find

 

It is linear so just plot it out.

http://wikitest.pgmfi.org/twiki/bin/...rary/MapSensor