Dwell on a S4 T2?
 

Got a stock S4 so what should the Dwell be? i got two maps, one with 3.0 and one with 4.5.. im using the one with 3.0 because thats the one from the previous owner.. but 4.5 is from a LT10x basmap for my car... I got a LT8

use 3.0ms, you will burn the igniters out at 4.5ms

also did you load a map off a dongle or handset that came for a LT10s?? that could be causing your problems as there are a few different settings that the LT10 uses that the LT8 dosent

Dale