What Are the Problems of a Faulty O2 Sensor?

Answer Oxygen, or O2, sensors have been mandatory on most cars and trucks made in America since 1981. They regulate the fuel mix to make your vehicle run efficiently, reducing emissions and improving gas ... Read More »

Top Q&A For: What Are the Problems of a Faulty O2 Sensor

Symptoms of a Faulty Map Sensor?

An engine's MAP, which stands for manifold absolute pressure, sensor monitors the amount of pressure in the intake manifold, which is where air and fuel are introduced to the engine. The vehicle's ... Read More »

How to Tell When an Oxygen Sensor Is Faulty?

Your car's oxygen sensor monitors levels of oxygen in the exhaust. When the levels are too rich or lean, the sensor signals the computer to adjust the air-to-fuel ratio as needed to reduce harmful ... Read More »

What Are the Symptoms of a Faulty Oxygen Sensor?

Most vehicles manufactured after 1980 contain engine oxygen sensors as part of the emissions control system to help the engine run efficiently and keep harmful emissions low. These sensors constant... Read More »

Symptoms of a Faulty Lambda Sensor?

A Lambda sensor measures the amount of unburned oxygen in a vehicle's fuel exhaust. If the oxygen level is too high or too low, the Lambda sensor sends a signal back to the vehicle's computer that... Read More »