Yes, i tried to change master fuel (reduce it to 4ms and increase to 17ms), but it doesn't affect AFR. As i said only MinEffectivePulseWidth and InjDeadTime affect. I'll try to check fuel pressure. Fuel pump is Tomei replacement for GTT/GTR (as far as i know GTR also has fuel pump speed controller). How i could check configuration for it? P.S. Thanks for replies