Steve, just out of interest, is you're E-01 definitly making adjustments correctly?
I've known cases where the E-01 locks up and causes problems. When this happens it seems to corrupt the E-manage and prevent any further adjustments. Usually running rich to be fair, but worth a try?
To check it, just let the car idle and make an extreme adjustment on the idle cell and watch the AFR gauge to see if it changes.
If the E-01 does need resetting, you need to go to the botom of the 'set-up' menu and select 'initialise' this will erase all its settings. Then, you'll need to input all the basic info like, number of cylinders, throttle type etc, then re-load the a fuel map and send it to the E-manage.