Does the check engine light affect fuel economy?

Yes, many of the problems that trigger the check engine light can hurt your fuel economy, sometimes significantly. A faulty oxygen sensor, a bad mass airflow sensor, engine misfires, a stuck thermostat, or an improper air-fuel mixture all force the engine to burn fuel less efficiently. A failing oxygen sensor alone can reduce fuel economy by a noticeable margin. So if you have noticed more frequent trips to the gas pump along with the light, the two are likely connected. Fixing the underlying issue often pays for itself through better mileage and prevents bigger repairs. At Motoro Cars in Miami, our ASE-certified, AAA-approved technicians use computerized diagnostics to identify the fault that is costing you fuel. Call Wynwood at (786) 634-2002 or Doral at (786) 633-3220 to diagnose the problem and restore your gas mileage.