Sometimes a build up of carbon/varnish just inside the throttle body plate will cause this to happen. Clean it with throttle body aerosol cleaner. Also check the wiring contacts in the plug at the mass air flow sensor for corrosion. It can be cleaned with electrical terminal aerosol cleaner. Good luck.
SOURCE: 1998 Nissan Maxima
You may have a problem with the check valve in the fuel pump, if this valve is defective the gas drains back to the fuel tank and causes long crank times, you can test this by hooking up a fuel pressure guage at the fuel injector fuel supply line on the top of the engine, run the engine for a moment and quickly record the pressure when you shut down, that pressure reading should not drop more than 5 PSI overnight, if the check valve is bad the pressure will most likely start to drop right away, but do the over night test anyway. If this is the problem you will need to replace the fuel pump in the gas tank.
SOURCE: 2000 maxima won't stay started on a cold morning
Have the plastic intake manifold and gasket replaced. I have posted this fixed at least once before and have seen it numerous times.
SOURCE: 2000 Nissan Altima temperature gauge and heater problem
sounds like you need to replace the thermostat.
SOURCE: nissan maxima 2000
Disconnect mass air flow sensor. SHould run constant if the MAF sensor is the problem.
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