Adjusting Air Fuel mixture '7747 AKDX

[57 Handyman]

Thanks Delco,

So, when you say "full LHM will stop scan tools and tunerpro from talking to the ECU", I shouldn't be able to do any data logging? I was just hooked up to my 7747 via my APU1 and was able to record some data (attached). But I have no idea if these recordings are good as only a few parameters seemed to be responding to throttle changes. Does this level of data logging indicate the ECM is not running in any level of LHM?

[57 Handyman]

Data logs didn't upload...trying again.