Ok, thank you.
Here is my answer.
Some earlier model fuel systems used a fuel pressure regulator that was mounted on the fuel rail. This type of regulator could develop a problem that would allow gasoline to run into the vacuum hose attached to it and this would "flood" the engine. Your car is equipped with a newer design "mechanical returnless fuel system" . YOUR VEHICLE DOES NOT HAVE THIS TYPE OF REGULATOR. Your fuel pressure regulator is in the fuel tank, connected to the fuel pump. It might be malfunctioning and causing excessively high fuel pressures.
The check engine light is indicating that the computer has detected a problem. A code will be stored and can be retrieved using a code reader.
Suspects in this case ? Excessively high fuel pressure, leaking fuel injector, fuel management system fault.
I would start with reading the codes to get a better indication of what the cause of this problem is.
You need to get this looked into as soon as possible. I am concerned about the reported condion of the engine oil. Fuel diluted engine oil does not do a good job of protecting engine components from excessive wear.
I am sorry but I cannot be more specific than this without knowing what code has stored.
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