Hi guys first of all Im newbee at tuning. I read a loooooot of forums and come here to learn some informations.
My question is; Im confused about SOI maps. Some values are negative. What is that mean ? BTDC or ATDC ?
SOI map locations
1D631C
1D6560
1D67A4
1D69E8
1D6C2C
Thanks and best regards.