What does the EGR valve do on a Honda Odyssey?
The Exhaust Gas Recirculation valve, or EGR valve, system in your Honda Odyssey reduces oxides of nitrogen by recirculating them back into the combustion chambers in your engine.
How to test an EGR valve, a simple procedure?
Connect a hand vacuum pump to the EGR valve in place of the vacuum hose and apply 15 in-Hg of vacuum to the valve (if you don’t have access to a vacuum pump you may borrow-rent one from a local auto parts store). As you apply vacuum to the valve, check for diaphragm movement.
What to do if your Honda Odyssey has a vacuum leak?
By pulling the hose off the valve and hooking up the pump to the valve, you are creating a vacuum leak. Apply vacuum to the EGR valve. The vacuum should remain steady and the Odyssey should run poorly. If the vacuum doesn’t stay steady and the engine doesn’t run smoothly, replace the valve.
Why are the valves on my Honda Odyssey not working?
If the valve is malfunctioning, it can cause the engine valves to knock against the piston heads. In a Honda engine, this can be fatal for the valves because Honda uses a compact engine design, called an interference engine design, which causes the valves and the piston heads to intersect if the timing of the valves and pistons is not correct.
Why is the EGR valve on my Honda Odyssey not working?
By doing this, the EGR valve can optimize the combustion in the engine to reduce emissions. If the valve is malfunctioning, it can cause the engine valves to knock against the piston heads.
Connect a hand vacuum pump to the EGR valve in place of the vacuum hose and apply 15 in-Hg of vacuum to the valve (if you don’t have access to a vacuum pump you may borrow-rent one from a local auto parts store). As you apply vacuum to the valve, check for diaphragm movement.
By pulling the hose off the valve and hooking up the pump to the valve, you are creating a vacuum leak. Apply vacuum to the EGR valve. The vacuum should remain steady and the Odyssey should run poorly. If the vacuum doesn’t stay steady and the engine doesn’t run smoothly, replace the valve.
What are the three parts of the EGR system?
There are three main parts of the Odyssey’s EGR system. They are the EGR Valve, Differential Pressure Sensor, and the Actuator Solenoid. P0401 is a general code, which means that regardless of the year (1996+ anyway) and the model, it’ll have the same meaning regardless of which manufacturer built the vehicle (Honda Odyssey or not).
The Exhaust Gas Recirculation valve, or EGR valve, system in your Honda Odyssey reduces oxides of nitrogen by recirculating them back into the combustion chambers in your engine.
If the valve is malfunctioning, it can cause the engine valves to knock against the piston heads. In a Honda engine, this can be fatal for the valves because Honda uses a compact engine design, called an interference engine design, which causes the valves and the piston heads to intersect if the timing of the valves and pistons is not correct.