3.a EGR valve (closed position) 3.b EGR valve (open position) 4. exhaust gas inlet (hot, connection to exhaust manifold) 5.a EGR cooler by-pass valve (closed position) 5.b EGR cooler by-pass valve (open position) 6. engine coolant inlet 7. engine coolant outlet 8. exhaust gas outlet (cold, connection to intake manifold)
1 post · Joined 2011. #2 · Jun 10, 2011. It's literally on the right hand side of the engine if you stand at the front of the engine bay. It's a silver cylinder sticking up wards. Got torques bolts and a wiring connector on top and a coolant hose entering it which comes from the bulk head ( from the cabin ). I'm after removing and cleanning
When P0404 is triggered, it means that the PCM has been told that the valve is performing in a way that is outside of its specified parameters. More specifically, the PCM has been told that the valve is closed when it should be open, or vice-versa. P0404 Causes. Faulty EGR valve; Faulty EGR sensor; EGR sensor wiring/connector problems B4ilw.