WhyMe 
2000 Nissan Maxima Sedan GXE 4dr Sedan
What's Wrong with Nissan
 I got a great deal on this car and I guess I know why.  Being a mechanic, I can tell you these cars have problems not worth fixing.  On the 2000-2003 Maxima, the computers give faulty signals saying sensors aren't functioning properly.  After manually checking each sensor to determine that the mass-airflow sensor needed to be replaced and not the O2 sensors, I replaced that.  In addition, the O2 and cooling sensors will go and they're $200 each for parts and there are 12 total (6 cooling, 6 O2).  And that won't fix it.  I've now ran all electrical/computer test and the only way to fix it is to take parts off one that runs and put them on mine.  Imagine the cost for a non mechanic.