I need help, my cat after 5-10 minutes running stop working. After a wile (from 5 to 120 min.) start again for short time. I replaced fuel pump, pressure regulator, pickup coil, ignition coil, voltage regulator, reimered valve bushings, temperature censor, throttle position censor and EFI module. Only 800 kilometers. No codes seen, and no idea what its can be. Fighting with it from 2015.