Hi I have a 14 mustang gt. I had my friend do an oil change and he forgot to tightly put oil cap fell off ran rough. Now my mpgs went way down. Still have power. Changed plugs, coil packs sending unit. Cleaned maf sensor, cleaned air cleaner. What could be the problem, No Check engine light.
Fairly stock, JLT intake, SCT tune.
Runs as strong as it ever did..
Not blowing any smoke.
Some plugs black, others clean.
Etc… plus I have a tune for 93 and 91 stock on the car.
Fairly stock, JLT intake, SCT tune.
Runs as strong as it ever did..
Not blowing any smoke.
Some plugs black, others clean.
Etc… plus I have a tune for 93 and 91 stock on the car.
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