How do you do this ? and why should I do it,my car was running fine prior to disconnecting battery lead now it feels hesitant almost like its missing at high revs,

Any help would be appreciated.

HELLO AGAIN,DEALER DONE MINE.UNFORTUNATELY DIDN'T CURE MY PROB.ITS GOING BACK IN ON WED I'LL KEEP YOU POSTED.

You shouldnt need to do an ecu reset on MY01's as the previos MY's had a different configuration that meant they took some time to learn, the MY01 and 02 learn virtually straight away what type of fuel and your driving style.
I suggest that you warm your car up and give her a good ragging!!
see if that cures it as you may have put her in some type of "limp mode". If its still not responding then take her to a dealer.
Just remember that you dont need an ecu reset on MY01&02!!

Tony

Thanks Tony, I will re check connections and do as you say.hope it cures it.

Tony, I may have solved it I put the original element back in,car lacks the low down pull the K & N gave it but now goes up to rev limit again ( didnt with K&N in top ) maybe it was flowing to much air and ecu was reducing fuel or something top end , still little bit surgy but will see if gets better.Cant believe a panel filter would make so much difference. connectins all seem fine,
Thanks. Sandman.