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View Full Version : Small Pulse adjust issue on Z06 E38 PCM. EfI Live is changing my values.



robertryan23
August 19th, 2011, 12:20 PM
When putting in small pulse adjust table for ID850 injectors, Efi live changes the values that I enter when I save and reload the tune. If I put in a value of .011 it changes the value to .007813. If I put in a value of .012 to changes the value to .0156. Is there some sort of threshold that I am hitting that is cause this? What is the problem here?

I have tried to save and just download the tune to the Z06 and then download it back to my computer to verify it put the correct values in. It still changed the values as mention above.

robertryan23
August 19th, 2011, 12:42 PM
Think i figured out my own question. .0078*2 = .0156. Therefor the resolution of the this pcm is only .0078. Thats makes giggle a little bit. Injector dynamics equipment is far above and beyond the resolution that this pcm can handle. Has anyone scaled the ve equation tables by 50%? Is it just as simple as dividing all of the values by 2?

joecar
August 19th, 2011, 03:04 PM
Close... not resolution but representation quantization, which is almost the same for smaller word widths :)

http://forum.efilive.com/showthread.php?5856-some-fields-just-will-not-save
http://forum.efilive.com/showthread.php?8964-Wtttttfffffffffff!!!!!!!!!!!!!!!!