You seem to be in a tough position; with all the different recommendations
to fix your Maxima being thrown at you. Here's what we think you should
do... You need to have your Nissan Maxima inspected by a reputable Gold
Shield smog check center. Visit the BAR's website www.smogcheck.ca.gov.
Select the smog station search option and choose a Gold Shield smog repair
station in your area. Gold shield stations are held to the state's highest
diagnosis and repair standards. Plus, if you have owned your Nissan maxima
for at least two years, they might even be able to get your $500.00 in free
repair money from the state.
Find a good GOLD SHIELD smog check repair center that you feel comfortable
with and take it from there.