Smooth Running Data Messy




Trying to track down the smooth running of the E55 - live in cylinder observations bounce all over the shop on all cylinders with some up to +-6 , with the acceptable threshold supposed to be at +-3.5. This is regardless of when at idle (bumped up to 700rpm from 650) or when engine at 2k say - adjustments seem to be the same.
Also an odd one is the mixture adaptions on bank 1 ranges from 157 to 161 and on bank 2 from 1 to 3. I cant explain the difference between bank 1 and bank 2?
Caveats - Has a 180m Pulley, Wetterauer Tune (basically same as Kleeman), Kleeman Cams, Carbon intake with BMC filters and Kleeman style headers. No Primary Cats. Secondary O2's disabled. Stock exhaust otherwise, 35k miles.
I am thinking Injectors / Primary O2 sensors / Fuel filter ?
No specific codes thrown.
Trying to track down the smooth running of the E55 - live in cylinder observations bounce all over the shop on all cylinders with some up to +-6 , with the acceptable threshold supposed to be at +-3.5. This is regardless of when at idle (bumped up to 700rpm from 650) or when engine at 2k say - adjustments seem to be the same.
Also an odd one is the mixture adaptions on bank 1 ranges from 157 to 161 and on bank 2 from 1 to 3. I cant explain the difference between bank 1 and bank 2?
Caveats - Has a 180m Pulley, Wetterauer Tune (basically same as Kleeman), Kleeman Cams, Carbon intake with BMC filters and Kleeman style headers. No Primary Cats. Secondary O2's disabled. Stock exhaust otherwise, 35k miles.
I am thinking Injectors / Primary O2 sensors / Fuel filter ?
No specific codes thrown.







