1991 Buick Century Speedometer Calibration

1991 BUICK CENTURY
94,500 MILES • 6 CYL • 2WD • AUTOMATIC
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RONSYSMEX
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I have been having problems with engine misfires, shaking etc. I replaced the "engine brain" computer and the rough running stopped, but now my speedometer seems to be registering at twice the actual speed and the only other guage (fuel) seems to be wrong as well. Can I do anything to correct this or will I just have to live with it?
Apr 16, 2010 at 12:52 PM
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JACOBANDNICKOLAS
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Have you checked the body control module?
Jun 7, 2010 at 9:18 AM