Trouble code P0486 is a generic trouble code relating to a problem incurred in the “B” electrical circuit to the exhaust gas recirculation (EGR) valve. It indicates that PCM has detected a problem with the rate of flow of the exhaust gas recirculation (EGR) system.
What is code P0486?
OBD-II Code P0486 is defined as a Exhaust Gas Recirculation Sensor “B” Circuit. EGR (Exhaust Gas Recirculation) systems are used to reduce the combustion temperature, thus reducing emissions. If the engine control module (PCM) does not detect the amount of flow requested from the EGR, it will set code P0486.
What does EGR valve do?
It connects the exhaust manifold to the intake manifold and is controlled by either a vacuum or a built-in electric step motor. The function of the EGR valve is to control the flow of exhaust gas being recirculated depending on the engine load.
What does code P042E mean?
What does OBD-II fault code P042E mean? OBD-II Code Decreased engine performance is defined as a Exhaust Gas Recirculation “A” Control Stuck Open. EGR (Exhaust Gas Recirculation) systems are used to reduce the combustion temperature, thus reducing emissions.
What does code P040D mean?
Exhaust Gas Recirculation Temperature Sensor
OBD-II Code P040D is defined as a Exhaust Gas Recirculation Temperature Sensor “A” Circuit High. An Exhaust Gas Recirculation (EGR) Temperature Sensor is an electrical sensing probe that monitors EGR temperature going in and out of the EGR Cooler and transmits the signal to the engine control control module.
What are the symptoms of a failing EGR valve?
What are the symptoms of a failing EGR valve?
- Your engine has a rough idle. …
- Your car has poor performance. …
- You have increased fuel consumption. …
- Your car frequently stalls when idling. …
- You can smell fuel. …
- Your engine management light stays on. …
- Your car produces more emissions. …
- You hear knocking noises coming from the engine.
How much does it cost to replace the EGR valve?
The average cost of replacing the EGR valve in your vehicle is anywhere from $250 to $350 on average, depending on your vehicle’s year, make, and model as well as the type of system it has. The cost of parts will be somewhere around $190 to $270, while the cost of labor will be anywhere from $60 to $80.