The oxygen sensor is a part of a group of sensors frequently in operation in your 2001 - 2001 Jeep Grand Cherokee, continuously measuring the effectiveness and performance of different systems and signaling the main computer of your Jeep Grand Cherokee as to what changes are needed to obtain peak levels of performance. The Bosch Oxygen Sensor capably checks on the degree of oxygen present in the exhaust gases as they get out of the combustion area and move throughout the exhaust system. If the oxygen sensor perceives that the oxygen levels are off, then it alerts the chief computer that there is a problem with the air to fuel percentage that needs to be dealt with. The chief computer focuses on that significant matter and the oxygen sensor carries on checking on the exhaust and the procedure of measuring and regulating is almost a nonstop one through the operation of the car. Not only does the correct air and fuel ratio guarantees better performance and fuel mileage to your car, it also serves to drop down the quantity of pollutants unleashed into the environment. If your oxygen sensor is starting to malfunction, you’ll see several symptoms that connect to the problem inside the combustion unit, since this component assists to keep the fuel burn at its most effective. Symptoms include idling, rough engine operations, reduced power, and poor fuel economy. If it reveals that you do need to change the oxygen sensor, you’ll find a reliable and affordable replacement such as the Bosch BS13716 from our online catalog.