Infiniti i30, qx4 g20 ecm / ecu repair | circuit board, We professionally repair your infiniti ecm (engine control module) also commonly referred to as the ecu (engine control unit) for models infiniti i30, qx4, g30 as. Nissan - sentra, maxima, infinity ecm-$190, This web page is not complete. more nissan ecm info is coming. wavrydr.com mp4501 nissan maxima 2001, 2002, 2003 ecm rav4. Recent 2001 nissan maxima questions, troubleshooting , Recent 2001 nissan maxima questions, answers, & troubleshooting help. get repair advice & diy solutions for product problems from car and truck experts..