Starting in the early 1980’s, O2 sensors or Oxygen Sensors have been standard equipment on cars and light duty trucks. Since 1995-1996 the number of sensors per car has doubled to improve efficiency.  They are a vital part to the emission and fuel systems, and as they wear they can affect your vehicles performance.   If your vehicle is experiencing any of the following symptoms than a faulty O2 sensor may be part of the problem and should be changed to avoid further and more costly repairs:

–          Check Engine Light

–          Poor/Reduced Fuel Economy

–          Failed Emissions Test

–          Hesitation/Surging Engine Revs

Bosch recommends that cars 1990 and newer replace their O2 sensors every 100,000 miles.  By doing so, you can expect to see an increase in Fuel Economy of 10-15% (roughly $100 savings/yr) and a decrease in emissions, which will help reduce your carbon footprint.