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Check Engine Light Flashing HELP!
My 2004 Mazda 6s with 140,000 miles has had the check engine light go on and off for about 8 months now. It was always the same code, a cylinder misfire. However, it was never the same cylinder. It would read almost all cylinders individually misfiring or every cylinder is misfiring. The spark plugs are about a year old now and are the standard OEM ones straight from Mazda. I thought it was the coils so I replaced all six of them. To my surprise when I changed the coils out 5 of the 6 had hair line cracks. So I assumed it was just the coils, but now I still have the same problem. I can randomly be going down the highway and the light will go on, start flashing, and before I can pull off to the side of the road it will become solid again and finally go away. On top of this my car has had trouble starting. You can hear the starter trying to turn the car over. So I'll give it a few minutes after I've initially tried to start the car and it will start right up with the check engine light on and eventually the light will go away on it's own. Can both of these problems be related to the same part malfunction? I also have a slight oil leak that drips on my catalytic converter.
Over the past year I've replaced my
Throttle Body (TPS Sensor)
Any input would be appreciated!