by the way what is LIMP mode with the auto? is that like the power mode?

question, if u dissconnectthe battery, and then the ECu has to relearn everything.

if u only drive the car once a week or so, would it do any harm to the ECU, as it will be sitting dormate during the week.

or will it just take a few weekend runs to get the ECU right, and not do any harm?

i wouldnt think it would do any damage to the ecu, it would just run a bit rough for longer if u dont do the proper ecu reset. relearning process. i found that when i got the exhuast with my car flat foot my car would rev right ti the red mark. now i have done the proper reset it revs only to 5500 suxs a bit but it would probly save engine wear