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      07-26-2009, 08:25 PM   #46
Ilma
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Drives: 2008 135i
Join Date: Nov 2008
Location: Mississauga

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I was thinking about this graph and got to wondering why the throttle pedal voltage is showing full throttle right at the start of the datalog?

Normally one sees the throttle pedal plot as an upward curve as one depresses it at the start of the run.






Quote:
Originally Posted by Mike@N54Tuning.com View Post
Sure, here is one with tps voltage added and scaled so that 2v = 1000. Boost targeting is a function of barometric pressure, IAT, and other factors. Getting targeting to work well under various conditions is tricky business. It may work well in the cold climate here, but when the ECU shifts around the boost targets for hotter weather be completely different. If you could include DME target and DME actual on your charts we could infer from the target curve your IAT and barometric pressure.

Mike
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