As some of you may have read my tune up did not go so well, the ECU is retarding the ignition timing like a window licker on a jummy bus!!

So aside from the ECU itself being at fault, the ACT sensor, and the Kncok sensor, is there anything else on a MFI RS Turbo that can cause the igntion to pull right back like this? Faulty Hall Sensor maybe?

Also are there any differenced between a S1 Dizzy and a S2 Dizzy, as i'm using a S1 on a late S2 loom?

Just trying to think of everything possible!

Thanks!