hi just found the site and hope you can help,basically my mother in law has got a 1.3 auto 1999 micra,one day it got a flat battery due to lights left on,she put the jump leads on off anouther car but put them on the wrong way around!,anyway it started but battery light was on,mechanic looked at it and said it needed alternator,he put one on then it wouldnt start and he suggested the engine ecu was blown,then she asked me to look at it, i checked all the fuses ok,sent the ecu off to be checked and been told its ok,when i get it back im gonna have a proper look and was wondering if anyone had any ideas as what to check,please help,thanks glen