We tend not to think about parts like an oxygen sensor until our check engine light comes on, and really why would we? If we knew a bit more about the importance of an O2 sensor when it comes to the performance of our vehicle we may feel differently. Sometimes referred to as an air fuel ratio sensor, oxygen sensors play an important role in fine-tuning an optimum air fuel ratio. At any given moment your oxygen sensors will determine whether or not your air fuel ratio is lean or rich. A faulty oxygen sensor can translate into lower than normal MPG… a side-effect any of us can ill afford. Allowing an old O2 sensor’s signal to continue to slow will result in decreased acceleration and overall performance. Vehicle emission control is another area where oxygen sensors play a crucial role.
You can find many original equipment as well as aftermarket options when searching for an O2 sensor for your vehicle. Remember that your vehicle may have several different oxygen sensors. Common names for these sensors include pre-cat, post-cat, bank1 sensor1 among others. Before speaking with your oxygen sensor vendor, be sure you’ve done your homework so you’ll know exactly which sensor you need.

