I have a gen4 so take it for what it is worth. I am working on this right now with a full Mivv exhaust. My almost perfect graves slip and Leo Vince midpipe tune was way off. To the point of I started over from scratch. I know exactly what you are talking about.
Add some timing-I have 1200 rpm at 17, 1400 at 16.8 and blend in to the cells above. Stock was 10. Idle rpm is set for 1400
These are my suggestions. Set autotune to the same in every cell iap and tps. I chose 13.0. This is to get a smooth fuel curve. Once sorted these numbers can change in the higher rpms
Set everything below 3k to 12.5. My engine likes to idle best at 12.0
Add 20% fuel to every cell below 5k, you can take this out as you log.
Drive it and if it is missing still then do not apply any rich areas from the AT map below the troublesome area. If you have been adding rich areas to the fuel map and missing you have been going the wrong way.
Log at idle while the engine is running and match the fuel delivery numbers between iap and tps. Also once you get a feel of how the engine travels through the iap map and tps map, make sure the fueling in these areas are very close.
Hope that helps some, you need fuel to stop the missing and roughness. Also, the fueling between the iap and tps maps must be very close. Even though iap is predominant below a percentage tps does influence the fueling.
Use the smooth function often.
Last edited by realpsi; 07-17-2017 at 07:20 PM.