2000 Mazda 626 2.5 flashing cel on 2000 Mazda 626

Replaced spark plugs(ngk iridiums) wires air filter and fuel filter. Also cleaned egr, egr ports in the intake, TB, and maf. Ran great for thirty minutes. Cel is still flashing. Oil smells like gas. Doesn't smoke. Won't go over 2500 rpms after being driven awhile(feels like its flooding)

Asked by for the 2000 Mazda 626
Change the oil and have the exhaust checked for restriction.