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Well yeah. I’m used to putting 200-300k miles on cars and they always pop up for one reason or another. Still running the same original coils with brittle connectors and o2 sensors too.
Recently hit a decline in mpg to around 23.8 which used to be around 26-27. Not sure what the cause is.
Replaced the plugs between 135-140k miles. Just cleaned the maf sensor for the first time a month ago. New air filter, tires, and alignment recently and no change in mpg.