1999 Plymouth Neon poor fuel economy

1999 PLYMOUTH NEON
25,000 MILES • 4 CYL • FWD • AUTOMATIC
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1999 Plymouth Neon mileage: 25,000. Gas mileage has suddenly dropped from 250 to 125 or so per tank. Some power loss when taking off from a stop, but other than that runs well. The dealership mechanic says it checks out okay.
Nov 1, 2010 at 8:36 PM
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Check the catalytic converter to make sure it is not “plugged” or restricted. Your car is equipped with a computer controlled engine management system. An independent auto service center can scan your computer for fault or error codes. The information should pinpoint the malfunctioning components.
Nov 1, 2010 at 8:48 PM