Lamda issues after speedtech install

Bmxr152

Specialist
Jul 13, 2019
50
7
0
Lake tahoe
Ride
N54 e90 single turbo
So I have the speedtech kit installed and a basic tune from v8bait to get me going. I'm running brand new ntk sensors. Injectors are index 12 and brand new. The issue I see which I never had with the twins is that bank 1 lamda sensor is jumpy and not flat. Bank 2 is similar but not nearly as bad. Anyone have any ideas? Maybe ignition related?

 

Bmxr152

Specialist
Jul 13, 2019
50
7
0
Lake tahoe
Ride
N54 e90 single turbo
I just got my ADV's in and still having an issue... Not to sure why this is marked as solved. This is like an ls forum lol, mark it as solved without any datalogs or proof...
 

WOT808

Specialist
Aug 7, 2017
80
56
25
Ride
E90 335i
Bought ADVs from SpeedTech. Using MHD ADV flash option.
Bank 1 AFR displays smoother in logs. Haven't verified with external sensor.

Stock Bosch Sensors (~5k miles old)
Log

ADVs
Log
 

Jewgo

Specialist
Nov 6, 2018
65
28
0
Ride
1r
*UPDATE*

I hope all is well with the "social distancing". With that being said, I finally got around to installing my ADV sensors (life's been busy). I am glad to report it fixed my AFR's. Bank 1 looks like bank 2 now. Car feels even smoother than it did before. My MPG's even increased by 2-3 all on the same tune. Very happy with the results, wish i did this a long time ago.

You can see the difference in my Bank 1 AFR's down below in the attachments.
 

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MoistNapkin

Corporal
May 25, 2019
104
89
0
Ride
08 135i
I have bank 1 on NTK that's wobbly as well. Going to throw in a spare bosch and see if that flattens shit out.
 
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shushikiary

Sergeant
Jun 4, 2018
304
173
0
Ride
335xi
I'm trying to find the wiring diagram to convert the speedtech ADV sensors to the stock plugs... I saw the mention of the PDF here but I can't seem to find said wiring diagram anywhere.

Anyone happen to have said diagram?

Yes both the stock and ADV ones have 5 wires and the same colors, just want to make sure wiring the same color to the same color is the right thing to do.

Edit: For anyone in the future, Jeff sent me the PDF it got missed in my box somehow. It's pretty simple, color to color, then remove pin 5 from the female ECU side connector.
 
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