my service engine lights came on again today when I was driving my max, did an ECU test.. and it came out to be the EXACT codes and problem that I had fixed not just 3 weeks ago 0304 and 0705, which would be the knock sensor and EVAP control, I had Nissan fix it 3 weeks ago, and now its on again... I think it has something to do with my radiator... but right now I'm kind of dumbfounded as to what the problem can possibly be... if anyone has any idea, please let me know, thanx

 

If Nissan "fixed" it 3 weeks ago, take it back.

 

Take it back to the dealer and have them fix it. You already paid them for the work - and all work done at the dealer comes with a 1yr/12k warranty.

 

cool, thanx