Flashing check engine light, misfiring and flooding

Good afternoon,

You have an engine misfire causing the light to flash.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

There is most likely a code set for the misfire identifying the cylinder.

https://www.2carpros.com/articles/check-engine-light-top-ten-reasons

I would start by checking the compression to be sure the internals of the engine are good. You need 140-160 pounds.

https://www.2carpros.com/articles/how-to-test-engine-compression

I would also verify the fuel pressure to be sure sufficient fuel is flowing to the injectors. You can rent a tester for checking the pressure at a parts store.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

I attached a guide for you as well.

Roy