1998 Z28 Camaro poor mpg

1998 CHEVROLET CAMARO
84,000 MILES • V8 • 2WD • AUTOMATIC
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1998 Z28 Camaro mileage: 84,000. Hi, I have a Z28 Camaro. When I first bought the car a few years ago, I was getting great mileage (20-25) gal. My car has a carburetor, but has all of that emission equipment for California. I recently changed the O2 sensor, set the timing, and adjusted the carburetor, so I was wondering what happened to my mileage (10 miles per gallon now). So please answer my question, and give me some info on the computer controlled q-jets.
Nov 9, 2010 at 7:43 PM
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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. The mileage problem you are having may indicate you are ready for a carburetor overhaul. When the carburetor is apart, pay close attention to the float to make sure it is not saturated; if it is, replace it.
Nov 9, 2010 at 7:45 PM