[natedog7700]

My Bank 2 AFR seems to diverge from target and i cant seem to find out why. WOT onset no matter what tune, it does this. Here is a log, i had slight traction issues but it shows what im talking about. Im scared to be beating on it with AFR's in the 17s for the first few seconds WOT. http://www.datazap.me/u/natedog7700/...-22&zoom=27-70



Replaced the following:

4-6 injectors with index 12's and coded correctly
New Pre cat O2 sensors
Upgraded from stage 1 to stage 2 LPFP
New NGK plugs gapped .018
New Delphi M3 coils

My car FBO with Standard RB's and VTT inlets running E50 ish

[weehe126]

N54........

[natedog7700]

Anyone?

[Sgop335]

Originally Posted by natedog7700

Anyone?

Your stft bank2 is maxed out at 34 during that time. Perhaps a fuel air adap may help or fuel scalars need to be changed.

[natedog7700]

Originally Posted by Sgop335

Your stft bank2 is maxed out at 34 during that time. Perhaps a fuel air adap may help or fuel scalars need to be changed.

Okay, i get what your saying. Problem is, ive tried multiple tunes and i was told by a respectable tuner he's almost certain its mechanical not tune related.

Here are a couple more logs. Question is, why are my trims maxed out for a few seconds and then recover? Why only at such low RPMs do they max out? My HPFP seems to be giving decent pressure. On this map im only running 18psi.

http://www.datazap.me/u/natedog7700/...og=0&data=3-22

[Sgop335]

Originally Posted by natedog7700

Okay, i get what your saying. Problem is, ive tried multiple tunes and i was told by a respectable tuner he's almost certain its mechanical not tune related.

Here are a couple more logs. Question is, why are my trims maxed out for a few seconds and then recover? Why only at such low RPMs do they max out? My HPFP seems to be giving decent pressure. On this map im only running 18psi.

http://www.datazap.me/u/natedog7700/...og=0&data=3-22

The tuner may be right. But have you done a fuel air adap recently? Also, like i mention the fuel scalar table could be an issue. If the table for both banks is same and an adap doesnt fix it then its hardware.

[natedog7700]

Originally Posted by Sgop335

The tuner may be right. But have you done a fuel air adap recently? Also, like i mention the fuel scalar table could be an issue. If the table for both banks is same and an adap doesnt fix it then its hardware.

Whats a fuel air adaption?

And whats a fuel scaler table? That sounds like it deals with the tune itself.

[Sgop335]

Originally Posted by natedog7700

Whats a fuel air adaption?

And whats a fuel scaler table? That sounds like it deals with the tune itself.

Fuel air adap reset can be done by mhd in the adaptation menu. The car is on without the engine running while you do that. No need to reset anything else. Yuor log doesnt have ltfts, and sometimes they get crazy resulting in maxed out stft.
Yes fuel scalar tables are tune related. Esp for e60, the table needs to be correct. There are two, one for each bank and generally they are kept same.

[natedog7700]

Originally Posted by Sgop335

Fuel air adap reset can be done by mhd in the adaptation menu. The car is on without the engine running while you do that. No need to reset anything else. Yuor log doesnt have ltfts, and sometimes they get crazy resulting in maxed out stft.
Yes fuel scalar tables are tune related. Esp for e60, the table needs to be correct. There are two, one for each bank and generally they are kept same.

Gotcha. is a adaption reset necessary if you flash a whole new map? Or are adaptions totally separate? For example, when i replaced my Lambada O2 sensors, should i have reset the adaptions or will just flashing a new map do the same?

[Sgop335]

Originally Posted by natedog7700

Gotcha. is a adaption reset necessary if you flash a whole new map? Or are adaptions totally separate? For example, when i replaced my Lambada O2 sensors, should i have reset the adaptions or will just flashing a new map do the same?

In my exp flashing map is not the same. Esp in your case with hardware changes reset may be necessary. I generally reset two items after a map change. One throttle and fuel air. I do not use mhd for throttle use the mechanical reset and it works, no question. Mhd for fuel air, lambda etc.

[natedog7700]

Originally Posted by Sgop335

In my exp flashing map is not the same. Esp in your case with hardware changes reset may be necessary. I generally reset two items after a map change. One throttle and fuel air. I do not use mhd for throttle use the mechanical reset and it works, no question. Mhd for fuel air, lambda etc.

I reset adaptions

Lambada sensors
intake mass flow
throttle
lambada regulation
fuel high pressure system


I skipped these

Load control
octane rating
VANOS
register battery