2001 SE Anniv Ed..serviceenginesoon light on(57,560miles)..so....

reasons. This is my 6th Max since '87. Love'm. In the past always OxSens but w/ this low milag concerned about why! Learn the ecm is covered under powertrain warranty till 60,000 and they reprogram and reset SES light. I suppose I got lucky this time.

on this. Seems to me things like this should ALWAYS be taken care of by Nissan. Sure wish I kew WHAT caused the problem...any ideas?

It was probably the infamous P0420 code (three way catalyst - TSB NTB00-070a) which applies to '00 an 01 models. The solution is to reflash the ECU with code which isn't so tempermental. BTW, if in the US, the ECU is covered for 8 years, 80,000 miles as part of the federal emissions warranty.