HELP!!! 1997 Maxima 6 cylinder. Stalls at low RPMs, difficulty starting and chugging at higher speeds. Tried replacing
fuel pump, camshaft position sensor, mass airflow sensor, fuel filter, throttle position sensor, crankshaft position sensor, cleaned throttle body and STILL STALING. No code either, help

 

Check for vacuum leaks.

Pull your plugs and check the health of them. Post pics here. They may tell you the story of what's going on...ie bad injector(s).

 

Throttle Body is done, so that leaves the IACV.

That's where I'd go next!

 

I had this issue on my 98 it was vacuum leaks and failing ignition coils