Understanding that after the base VE map has been constructed, how do we adjust the IAT fuel multiplier to compensate for temperature changes? Example, The VE tables are setup at a given temperature, lets say a steady 75 degree inlet temp on a dyno. Now on the drive home it exhibits a lean condition in a 50F ambient condition. Can this be done with the current SD stuff? I was looking at the Airflow/HZ Baro & Air Temp Compensation Table. Is this where we start? Will it act like a IAT fuel multiplier? I just had my Evo changed over to SD and I'm worried about temp changes/elevation stuff. THANKS PEOPLE! Also I'm going to keep thanking all who have put some much into this SD Stuff!!!!! I for one really appppppppreciate it!!!!

 

If you are seeing AFR vary greatly with IATs, I'd double check you have the right IAT sensor scaling table in there. I haven't seen hot temps yet, but AFR has been pretty consistent from 0F to 45F so far.

 

I for one have not seen this, just got it installed on my ecu from a freind.....was just wondering if it has been a problem with this SD. You've put my mind at ease. Thanks...

HJ