most of the time you will have an emissions related fault like a faulty egr valve or pcv valve or you maf maybe dirty or one of your vaccum hoses maybe kincked or accidentally disconnected by a goof mechanic
if no warning and it just shuts down but dash lights and radio light up check ignition switch
If your car just shuts down even on the highway it is most likely the cam position sensor, I needed to replace mine for the same thing
Infiniti QX was created in 1997.
Oil for 1997 infiniti needed
Where is the thermostaton a 1997 infiniti q45
A 1997 Infiniti QX4 may shut off while driving due to several potential issues, including a failing fuel pump, clogged fuel filter, or ignition system problems, such as a faulty ignition coil or spark plugs. Electrical issues, such as a weak battery or bad alternator, can also cause the engine to stall. Additionally, problems with the vehicle's sensors, like the crankshaft or camshaft position sensors, may lead to unexpected shutdowns. It's best to have the vehicle diagnosed by a professional mechanic to identify the exact cause.
If you lost power while driving it could be the alternator. Its not charging your batter anymore
Check the fuel pump.
could be bad fuel filter.
commandocaralarms.com
10w-30
the egntion