I have a 94 Ford Aspire. It is using too much gas to run. My range is
from 27 to 30 mpg. It acts sluggish during acceleration. During warm
up you see the smoke from the exhaust black in color. Any suggestions?
If black smoke is visible it generally indicates unburned fuel. That
suggest to me your fuel air ratio is operating
outside design parameters.
The problem could be a simple as a clogged fuel orifice, or a faulty plug
wire. I suggest you take the vehicle to a competent technician, who has the
proper equipment to analyze and correct the fault. If your vehicle has
"check engine" light, I'm surprised that it is not elluminated
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