is there anywhere where i can purchase the ecu program for a 2001 nissan maxima se... i have a laptop and would love to hook it up to my ecu so i can change the air/fuel ratio, and other settings....Is this impossible to get or is it worth like 2 grand to buy?.....are there any alternative out there ? all feedback is welcomed

 

look into an apexi safc. there is one for sale in general classifieds for a reasonable price. search on apexi's site for more info. i know you were looking for a software program but i am not aware of one. the consult 2 would do what you are looking but its a couple of grand and not available to the public.