Some things just seem to really belong together, you know? Peanut butter and jelly; racks and pinions; Sonny and Ch…anyways, you get the point. The same can be said for the two vital components necessary for keeping your engine chuggin’ along: oxygen and gasoline. The engine relies on an exact balance of water and fuel in order to burn this mixture efficiently, so the ratio of oxygen to gasoline must be accurately maintained so that the engine can continue to effectively run the show.

Your Volvo 850 oxygen sensor is what makes the monitoring of this delicate balance possible. Implanted into the exhaust pipe of your vehicle, the oxygen sensor monitors and evaluates the mixture of gases being released by the exhaust system, and it detects when there is an imbalance of elements, such as too much fuel (rich), or too much oxygen (lean).

A chemical reaction causes a voltage to be sent to the engine’s computer. The computer reads the data sent by your Volvo 850 oxygen sensor, and if its informed that the vital mixture is too rich or too lean, it will adjust the amount of fuel that is admitted into the engine in order to gain the proper balance. It’s a good idea to make sure your car’s oxygen sensor is functioning within acceptable parameters, because without its valuable information the engine will resort to making an educated guess, and this can end up having negative consequences in regards to the environment.If you need a new Volvo 850 oxygen sensor, look for further than where you are right now.