I started tuning my VE table and am getting most of the table under 4000 rpm and 80 kpa within +/- 3%. But on decel, I am going rich (11.5 to 12.5 afr) and despite making major changes to VE table at 30 kpa, my wideband continues to read rich. With the last decreases in VE that I made, although the wideband was still 12 afr, the trims were going positive and adding fuel to the motor! I think something must be wrong with my SD 60 injector setup relating to min pulse. I have the min pulse set to 1.3 but all the logs will not go lower than 1.8 . What should I be looking at or doing differently. In case it is something with my injector set-up, I want to get it corrected before I start tuning in PE and BE area’s of VE table.
Vehicle Data – 2004 Corvette , LS1 , Procharger P1SC-1 SC @ 7 PSI , 216/220 112 cam, 9.5/1 CR, SD 60 Injectors, 2 Bar OS