If you are happy with the boost level at map 2, I would leave it there. The car's ECU AND the JB4 both taper at high RPM, resulting in sufficient taper. No need to do anything further in Map 6. Map 2 is generally conservative if you have good quality 93 octane fuel.

JB4 without fuel wires installed/activated has no way to influence fueling. Even if the fuel wires were installed and malfunctioning to call for a very lean AFR it would show in the log under the fuelen field (just theoretical, I have not seen this ever occur in a log). I am always trying to learn more though. Can you post the log of your stock pulll where AFR looked good? Also link to the information about JB4 causing lean condition?

The rate doesn’t seem to decrease then increase … it’s almost like it does a slight downshift and pulls harder.

I cannot seem to get the file to upload at this time, so you'll just have to trust a stranger on the internet haha. As far as other forums discussing it, you can search 'JB4 AFR lean' or similar and you can find a few forums here and there discussing the possible causes, but nothing definitive for a solution. To me, it's reasonable that if my Map0 runs have no issue but Map1 leans out, and Map2 just a bit more from there, that my vehicle is unable to provide enough fuel when I use the JB4 to request more air. The reason for that is what I am not sure of, but I don't think it would simply be a fueling issue from the car if it behaves normally while stock. I'm hoping to get to the bottom of this so I can safely run the JB4 because most discussions I've seen around it have been nothing but rave reviews which is why I was excited to purchase and run it.

First post and trying to clarify something. Several weeks ago I purchased a JB1 from Burger. My Q50 is pretty much stock. I run 93 octane. I have been playing around with 3,4 and 5psi over stock. Today I was looking at the JB1 hooked up to my car and noticed under maps (upper right hand corner) I have maps 0 through 8. I know the JB1 only has 0,1 and 3. I am able to select any map and it saves. I also selected map 6 and was able to select different boost and different RPMs. Is it possible I have the JB4? I just selected map 2 and is saved. Now when its saving it says JB4 saving. A little confused....
Thanks for any replies. Note: I don't have the bluetooth connection. I use my labtop.

Disregard previous post. I have a JB1.

JB4 connection issues
 

My JB4 connects with Bluetooth displays map and boost but no rpm,temps,AFR, I tried blowing and reconnecting every wire and taking it off resetting the phone and updating the app nothing seems to work when I unplugged the obd2 wire from the JB4 some data popped up then froze (JB4 for q50 vr30) thank you and sorry in advance for not knowing where to ask this I tried looking for it but didn’t find it on here

Has this issue been resolved? How can we see actual charge air temperature now?

Your OBD2 connector is somehow not connected. I had the same symptoms once before because I had forgotten to connect it.