New here and would like to get information on how to get kPa(Load) to show on TunerPro RT. I have used Mark's software to run many different GM tunes in my shop and wanted to get the floating point to work on my Turbo Grand Prix. Problem is in the .ads file does not have an axis selection for kPa(Load), only Map Load Variable which obviously does not register.

Mark sent me here in hopes of getting someone with some time available to help. I am in way over my head with what Mark spoke of and need some help please.

Thanks folks,
-Kenny

 

Hint:

Your ADS should already have the MAP outputted in volts. Here's how to convert it to kPa:

1 Bar Map
kPa = (0.369 * N) + 10.354

2 Bar Map
kPa = (.0781 * N) + 8 (gives worst case error at Room Temp of +1.27 kPa)

3 Bar Map
kPa = (1.23 * N) + 2.2 (Max error of -.85 kPa)
----------
Hint #2: Your mask outputs the MAP on byte 29:

29 AD2MAPF FILTERED 2 ATMOSPHERE MAP LOAD VARIABLE
VOLTS = N*(5/255)

If you edit the ADS, for the MAP item you'll probably see a conversion factor of 0.01960784. Change the factor to .007235 and set the offset to 10.354 to output kPa instead.

 

Excuse my question if it sounds rediculously uneducated.

If I change the MAP sense to kPa rather than Volts...will that effect the ECM's ability to interpret the data or is this only recognized by the datalogger?

 

Datalogging is one way and has no affect on the tune, with little exception (at least that applies to your ECM).

 

Ok.

I am going to mess with this when I return from DTT on the 19th.

Thank you for getting me a head start!

 

Hey Mark,

Well I have finally gotten some free time to play with this on my personal car.

I got the RPM to show floating point but not the MAP axis...but the equation I entered (shown from you in 2 BAR equation) is not having an effect. I entered that equation in the F2 box of XDF line item/Conversion/Equation Format

Any possible words of wisdow you can help me with?

 

Post a screen shot of TP so everyone can see what your talking about and not have to interpret what box in the window your talking about.

 

How do I take a screen shot?

 

click on the the TP window you want to copy-so you don't do the whole screen.
Then press the
<ALT> <Print Scrn> buttons at the same time.
Open up MS Paint and paste the image to it.
Then do "save as" a JPEG and post it on TGO.

 

Thank you sir.

Here we go.

 

The equation Mark listed is for the ads to display the map value in the correct units.
You edited the equation for the table editor display which is displayed in % not kpa.
Put the table eq back to 100/256 or what ever it was and edit your ads for the 2b map.
Then you have to simply define the aldl association in the ve table tab to rpm and map.