Since I've downloaded the latest firmeware my meth flow has been acting up. At first it was slow to reach 100% which it always hits, now today it was hitting at best 50%, i did three short pulls not even revving it out, around 4000-5000 rpm. Then the car seemed to shudder at light loads in 5th and 6th gear. I get home and the car will start 2stepping by its self with the clutch out when revved to the set rpm, and now it has a very rough idle to the point it's making my flywheel rattle the car sounds like it has a dead cylinder and has a GT-R like exhaust note, I figure its the flywheel because the sound lessens or goes away when the clutch it pressed. Anyways, mods are meth with a 43 additive (using 100% denatured alcohol, full tank), dp's, intakes, G5 ISO, and mhd bef 42,000 miles using 90 octane, I was on the race flash. I tried to purge the meth system and it will not climb over 75% car was on battery charger also. All plugs look clean, no codes either. I've attached my csv logs from yesterday when the car was running good and the first log where I noticed the meth flow drop. any help where to start would be nice. I also just installed a RB external pcv with the mishimotto catch can, if that makes a difference.