I was running an ems, it wasnt tuned properly and was running really rich.
It was running 12 psi when i last drove it. The oil wasnt checked very often, my mistake, as we all know sr20det’s are one of the most oil dependant motors.
After I ran out of oil and did an oil change, went for a drive, then the 3rd cylinder went, it couldnt hold any compression after all the friction because of the lack of oil.