04 chevy express van v6 running rich

Asked by Dec 14, 2019 at 04:32 PM about the 2004 Chevrolet Express Cargo 1500 RWD

Question type: Maintenance & Repair

changed wires,plugs,distributor cap ,rotor cap main distributor,spyder injectors
maf and map sensor,both catalytic converters,muffler flashed another computer
has compression still running rich. number 4 and 6 cylinder not shuting off but can shut off with scanning tool. changed fuel regulator,gas filter has fuel pressure.where to go from here

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