Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › P0720 2001 Nissan Maxima This topic has 16 replies, 6 voices, and was last updated 12 years, 4 months ago by NissanMaxx. Creator Topic July 27, 2012 at 11:00 am #463095 MattParticipant Whoa, slow down man. Creator Topic Viewing 16 replies (of 16 total) ← 1 2 Author Replies August 1, 2012 at 11:00 am #463108 EricTheCarGuyKeymaster If you have a scanner that reads live data then you can look at the O2 readings while the engine is running. Author Replies Viewing 16 replies (of 16 total) ← 1 2 You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In