Firstly let me say thanks to everyone for contributing to this thread. I am working through this and making changes to my tune.

I am trying to understand what I am actually doing and where this will get me. I think that this spreadsheet will help get my VE tables “correct”. It does this by using WBO2 readings when:
  1. The computer is in closed loop
  2. The computer is in open loop AND the BLM=128


The spreadsheet finds areas where the tune is not at stoich and then either adds or subtracts from the VE% table. This will subsequently add or subtract fuel to move everything towards stoich.

Is what I said above correct? Please set me straight if I am wrong.

My expectation is that I will end up with a tune that looks something like the attached picture. But I could be wrong.

afrtable.GIF

So my biggest question is this:
  • I do not understand how this process will get me to a tune that looks like the attached picture because it seems like this process is moving everything towards stoich.



BTW – I set the spreadsheet to 14.1 because all of the gas around me is E10.

Thanks,

MAC