We have a 98 Forester with 190,700 miles. Yesterday the CEL started blinking. I dropped by the O'Reilley Car Parts store and discovered they will use their OBD II code scanner to read your DTC. The only code was Misfire on Cylinder 2.
I've recently replace all spark plugs with those iridium plugs, all the plug wires, and fuel injectors. The car runs fine, but every once in a while it misses a beat--I guess a misfire.
Anyway, I've heard a blinking CEL is some sort of bad news about the Catalytic converter.
The gas mileage is terrible. I haven't had the chance to measure the miles per gallon, but at the rate the gas gauge needle is dropping, the mileage is very low.
Could this perhaps be a bad oxygen sensor (before the catalytic converter) even though no code is being thrown?