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Scan tool shows MAP in KPA, but LS1_edit shows Grams of air per cylinder ??

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Old 03-12-2006, 09:16 PM
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Default Scan tool shows MAP in KPA, but LS1_edit shows Grams of air per cylinder ??

I am working on my timing tables in LS1_edit and have pretty much figured out what cells to edit. But......


Why does my VE table show everything in MAP Kpa, but my timing tables show everything in Grams of air per cylinder.

My scan tool seems to only show the MAP in Kpa as well, so I have no real way of determining exactly what cell to edit. How do I read it in gms air /per cylinder?
Old 03-12-2006, 10:26 PM
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You want the "Dynamic Cylinder Air" value, mass,
not the MAP (pressure).
Old 03-12-2006, 10:33 PM
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thankyou
Old 03-13-2006, 08:12 PM
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also, one is pressure (KPA), while the other is mass of air. The units are different because the values are different.
Old 03-15-2006, 01:20 PM
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LT1 edit only used the MAPs KPA for all the timing tables. Now that I have LS1 edit Im still having a hard time finding this "Dynamic Cylinder Air" value in my scan tool.

I have the OBD-2 scan tool and the Advanced Parameters specific to Y body C5 corvettes. I can data log HUNDREDS of different values. But I still cant find the "Dynamic Cylinder Air" value anywhere.

Am I looking for the wrong thing??? I need to be able to pinpoint my engines operating range for the timing tables. Can anyone give me a greater explaination?? Do I have to do some kind of math to get this # or should there be a data line in my scan tool showing "Dynamic Cylinder Air" ??
Old 03-15-2006, 02:13 PM
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You may need to log "dynamic airflow" and do the math
w/ RPM but both my EFILiveV6 and HPTuners just provide
it. What scan tool? I know EFILive requires you to log the
"supporting" PIDs for some of the "derived" ones, or it will
not cough up the data. But don't know whether this is
the problem.
Old 03-15-2006, 05:16 PM
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www.obd-2.com is the scan tool i use




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