I was driving along just cruising when I see the SES light come on in my 99SE-L. I am at 46,xxx miles right now, just got an oil change about 400 miles ago and the car seems to be running fast but my gas mileage went down a bit I have noticed this past week. I have a strong feeling this is one of those O2 sensor deals as my last max had this happen around the same mileage long ago.

My question is, if I go to check the ECU manually and have to peel off that tape, would it void my warranty? I have factory warranty and will most likely take the car in to them this coming week, but I want to know if this is just an O2 deal or what, cause I need to take a 120 mile round trip journey tonight. The car still pulls hard, so I am not sure what is wrong. Help! lol

 

Check the code yourself. It will not affect the warranty.

 

What a shock.......07 07, as in Rear heated O2, and 05 10 as Undefined....never had that one before. What could that one be?? nothing major? Doesnt surprise me the O2 went though, this is common on my other max. Thanks for the info, glad I could check it and reset it!