Try the mass air flow sensor! I have a 2000 impala that was doing the same thing. I changed just about everything (spark plugs, wires, ignition coils, fuel filter, air filter, pcv valve, and fuel pressure regulator)with no luck. Finally took to repair shop ran diagnostics, bad mass air flow sensor. Looks easy to install once located(2 screws and a clip). Hope this helps.
Friday, March 12th, 2021 AT 9:40 AM