Under what conditions is the EGR valve open?
The EGR valve is closed when the engine is starting up. During idle and at low speeds, only a small amount of power is required, and therefore only a small amount of oxygen, so the valve gradually opens – it can be up to 90% open at idle.
Why does the light come on when the EGR valve fails?
The light flashes if there is a problem with the engine so it will come on when the EGR valve fails. The engine control unit (ECU) monitors the activities of all engine components. It activates the light upon sensing that the valve fails to do its normal function.
What’s the code for an EGR valve throw?
What code will an EGR valve throw have? The P0401 trouble code is related to your car’s exhaust gas recirculation (EGR) system, which controls an engine and reduces emissions. Suppose a computer-controlled valve gives a certain amount of gases back into your engine to be burnt with the air-fuel mixture.
Are there any problems with the Saturn’s series?
Saturn experimented with making these out of plastic, it was a huge failure. ALL of them failed, if you still own one of these cars and it hasn’t been replaced, it has failed. Symptoms include hard starting, rough idle, temperature gauge not working, awful fuel economy, poor performance, and stumbling, among many other things.
Why is my fuel pump not working on my Saturn s?
This is caused mainly by overdrawing from the 12v socket, or high power aftermarket accessories drawing from the same circuit. There will be melted plastic around the fuse. The radio, chime module, dome light, 12v socket, and fuel pump are on this circuit. You will probably know about it when the fuel pump stops working.
Why is my EGR valve stuck in the open position?
One of the most common symptoms of a problem with the vehicle’s EGR valve is a rough idle. It is not uncommon for EGR valves to malfunction and become stuck in the open position. This can lead to exhaust gas recirculation, which causes rough idling even when the conditions are not desirable.
What code will an EGR valve throw have? The P0401 trouble code is related to your car’s exhaust gas recirculation (EGR) system, which controls an engine and reduces emissions. Suppose a computer-controlled valve gives a certain amount of gases back into your engine to be burnt with the air-fuel mixture.
Can a bad EGR valve cause a misfire?
Can a bad EGR valve cause a misfire? Of course, a bad EGR valve can cause a misfire . It is mostly caused by clogged passages in your vehicle’s intake manifold.
How does an exhaust gas recirculation ( EGR ) valve work?
The EGR (Exhaust Gas Recirculation) valve helps lower the car’s exhaust emissions (gases from the tailpipe). It recirculates the portion of the gasses coming out of the engine by putting in back into the intake manifold, where the engine can burn it again, thereby reducing the emissions. The EGR
Where is the EGR valve on a Toyota Camry?
The EGR valve is near the throttle body. If you follow the intake towards the engine, you’ll soon spot the EGR. Figure 1. Location of your Camry’s EGR Valve. Before taking off the valve, label the necessary hoses so you know how to reconnect them in a few minutes.
How do you clean the exhaust valve on a Toyota Camry?
Label your hoses for future reference. Once you remove the valve, take a screwdriver, a wire brush, or some other kind of scraper and clean out all the gunk as well as carbon inside the valve. Exhaust gasses will cake the inside of the valve, and with the heat of the gasses, it hardens into a very solid layer of crud.
How much does it cost to replace a valve on a Toyota Camry?
If you need to replace the valve, take off the old valve and then install a new EGR valve. You just removed the original one five minutes ago, so this should be pretty easy by now. A brand new EGR valve from Toyota will cost you around $60.