0.5-4.5 fuel pressure sensor

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MM887
MS/Extra Newbie
Posts: 18
Joined: Mon Jan 09, 2017 12:44 pm

0.5-4.5 fuel pressure sensor

Post by MM887 »

I have the fuel pressure sensor and datalog function working well on my setup, but it is roughly 2psi difference than my other FP gauges. From my research I'm seeing that the default setting is for a 0-5v sensor, and not the 0.5-4.5 sensor I have.

Is there a way to change this in tunerstudio, or is my only option to pick up a 0-5v sensor?

MS1, 3.0, 29y4
Matt Cramer
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Posts: 17499
Joined: Thu Apr 16, 2009 8:08 pm

Re: 0.5-4.5 fuel pressure sensor

Post by Matt Cramer »

You will need to edit the INI file to match your sensor's output curve.
Matt Cramer -1966 Dodge Dart slant six running on MS3X
MM887
MS/Extra Newbie
Posts: 18
Joined: Mon Jan 09, 2017 12:44 pm

Re: 0.5-4.5 fuel pressure sensor

Post by MM887 »

Am I in the ballpark area I need to modify? This is under the "output channels" section

fuelvolt = { fuelADC < 1 ? 0.0 : fuelADC * (5.0/255) - 0.5 }
fuelpress = { fuelADC < 1 ? 0.0 : fuelvolt / 0.04 +1 }

This is what the default setting was, any changes I made didn't have an effect, so I returned it back to what it was originally
old guy
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Posts: 362
Joined: Thu Jan 24, 2008 9:20 am
Location: North Carolina

Re: 0.5-4.5 fuel pressure sensor

Post by old guy »

Just us the custom gauge wizard in Tunerstudio, does all the work for you.
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