Check Engine Light is on


Find out repairs required for this symptom pertaining to your car's specific model and model year.

Top 5 Repairs

Replace Heated Exhaust Gas Oxygen Sensor

"An oxygen sensor (or lambda sensor, where lambda refers to air?fuel equivalence ratio, usually denoted by ?) is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analysed. The original sensing element is made with a thimble-shaped zirconia ceramic coated on both the exhaust and reference sides with a thin layer of platinum and comes in both heated and unheated forms. The most common application is to measure the exhaust-gas concentration of oxygen for internal combustion engines in automobiles and other vehicles in order to calculate and, if required, dynamically adjust the air-fuel ratio so that catalytic converters can work optimally, and also determine whether the converter is performing properly or not."

Replace Ignition Coil

An ignition coil is an induction coil in an automobile's ignition system that transforms the battery's low voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel.

Replace Spark Plug

"A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator."

Reprogram Engine Control Module (ECM)

"An engine control unit (ECU), also commonly called an engine control module (ECM), is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance. It does this by reading values from a multitude of sensors within the engine bay, interpreting the data using multidimensional performance maps (called lookup tables), and adjusting the engine actuators. Before ECUs, air-fuel mixture, ignition timing, and idle speed were mechanically set and dynamically controlled by mechanical and pneumatic means."

Replace Fuel Filler Cap

"The fuel tank or gas cap is the simple cover on the opening of the fuel reservoir of a vehicle. It ensures the fuel remains clean of any dirt or debris, and no fuel vapors escape. Thereby, it is related to the vehicle EVAP system."