Do I need to disable Gego for VE Analysis?
– Gego is factored into the VE Analysis formula. Say the current table VE value for a single calculation is 50 and Gego is 110, 55 will be used as the actual VE value. If Analysis determines that it was lean for that record, the 55 value will be increased accordingly and added as a weighted recommendation. So by running with Gego on, you benefit by having both the ECM learned correction and the current O2 to use as input for correcting the table, instead of just the current O2 output. Having both is better, especially with a NB O2 sensor. So while I would recommend leaving Gego on with either a WB or NB sensor, I highly recommend leaving it on for a NB.
