phantom_

hi all,

i am experiencing Hondata FlashPro.

which sensor do you select for WOT determination? TPS or MAP? any pros/cons?

H22toF20

WOT would be determined by TPS percentage. MAP pressure doesn't stay constant through out the RPM's during WOT.

Gernby

If you are FI, then you definitely want to use MAP to determine WOT, but the Honda uses TPS and RPM by default. I've tried both with my NA setup, and think there are advantages to each. If you are NA and drive your car across a significant range of altitudes, then you should definitely use TPS instead of MAP. The reason is that the resonance of the intake has a much bigger effect when the throttle is fully open, so even though MAP might be almost exactly the same at 50% vs 100% at 3K RPMs, there is a significant difference in fuel requirement.

phantom_

thanks for your replies.

i am NA. unfortunately my first calibration has been done according to MAP.

should the calibration (fuel, iginiton values etc.) be revised if i simply switch from MAP to TPS?

what do you advise?

deibit

is it really so? I always thought that the S2000 ECU uses MAP and RPM as input.

crazysupratt

i'm sure its MAP.

camuman

i have looked at flashpro map. your tune is based on rpm and map. X rpm at X load <map> determines timing and fuel and then the long and short term trims kick in. tps is used for other stuff. just cause your not boosted doesnt mean there isnt a fluctuation in load<map>. NA s2k will range between -12 to 0 psi. hope that helps.

Gernby

FlashPro manager indicates that the default value for "Use MAP to determine WOT" is unchecked. If you right click on the check box, and select "Reset to default", the box will be unchecked. If you check the value, so that it will use MAP to determine WOT, then a yellow indicator will appear next to it, which indicates that it is NOT default.

Gernby

It seems that you might be talking about something different. Obviiously, the "tune" uses MAP and RPM to determine fuel and timing. However, that doesn't mean that MAP and RPM are the determining factor for open / closed loop. I believe the OEM factory tune uses TPS and RPM to switch between open and closed loop.

H22toF20

Agreed.