method of tuning smc throttle position

[nudge302]

I have a question on tuning with throttle position only smc ecu. Should I have the vacuum hose connected to the ecu or block it off. I have tried both on and off which results in different fuel numbers and a baro pressure error when connected. Also do I need to set up the baro pressure estimate.

[MRMRacing]

If you only use Throttle as load it should Not be connected. The pressure drop is only used when nonboost (throttle/map) and the sensor connected.

[Ian]

Set any numbers in the Baro estimation table to -ve values. That table is for correcting baro estimation on MAP sensor naturally aspirated engines only.