I have problems with the igniton timing and have had that for about 1-2 years, tryed to adjust multiple times, it showes as "corekt" and then it isent, car is slugish, slow, backfires, cherry red turbo after 10min drive.
Changed plugs, coils, maf, fule pump, fule filter, have alsow tried a different Oem ecu with no luck, had a sugestion to try a manual ecu and shift it myself to se if that would solve the problem.
Would go for a aftermarket ecu but nothing suports s2 auto