the cold idle issue is not a new one to sr20's
http://www.sr20-forum.com/global-stickies/57272-sr20-forum-manifesto.html
that link should help you resolve the idle issues
yes the usb is to hook the ecu to a laptop for tuning.....find someone local to help you learn your ecu or read ALOT before you try anything
and as always....ask
http://www.sr20-forum.com/global-stickies/57272-sr20-forum-manifesto.html
that link should help you resolve the idle issues
yes the usb is to hook the ecu to a laptop for tuning.....find someone local to help you learn your ecu or read ALOT before you try anything
and as always....ask