i hope u can help...I have 05 scion tc I use to be supercharged, i took off supercharger and put on greddy turbo kit an my ecu still hav trd reflash. I went to tuner an he tune my car with greddy emanage ultimate an it ran fine until for some reason sometime when i drive or boost a little bit an let go the gas the rpm would drop close to zero an car shuts off...it do that sometimes.. the tuner at TE try to set anti stall but it wont let it. Rick at TE say It might be trd reflash but I thought people say u can tune around the reflash. I can still drive an get off on it but the rpm would dropp close to zero an sometime engine would shut off an sometime it doesnt. my setup is 550 injector greddy rs bov greddy turbo greddy emanage ultimate....thanks

 

did u shift into neutral right after boost? that happen to me a couple times when i first got f/i. idk if thats it but just a sugg.

 

wrong section

 

it might be a possibility that it's the trd reflash but then it doesn't seem right when you stated that you hit boost a little and then let off. Then the car started to go to 0. Btw I advise you to not hit boost at partial throttle cause with the emanage you can't tune the partial section unless you have the blackbox.