Plugged EGR passage which restricts the flow of exhaust gasses, faulty EGR solenoid, faulty EGR solenoid wiring/harness, vacuum lines damaged or disconnected to the EGR valve solenoid or to the EGR valve, or a faulty EGR valve.
Carbon build up. Sticky or stuck EGR valve. Vacuum supply line damaged/leaking. Faulty EGR valve. Faulty EGR Position sensor/wiring.
A faulty or clogged egr valve can cause an engine to run rough. If stuck or clogged the valve can be cleaned after removal with carburetor cleaner.
Yes.
P0400 - Exhaust Gas Recirculation Flow Malfunction Possible causes - Exhaust Gas Recirculation (EGR) solenoid valve harness is open or shorted - Exhaust Gas Recirculation (EGR) solenoid valve circuit poor electrical connection - Exhaust Gas Recirculation (EGR) volume control valve stuck closed - Faulty Exhaust Gas Recirculation (EGR) volume control solenoid valve - Dead (Weak) battery - Faulty EGR temperature sensor and circuit - Faulty EGR Valve
Yes
yes
You can't really clean the EGR valve. If it's faulty, it simply needs to be replaced. -Jesse
There are quite a few potential problems that can be caused by a faulty EGR valve: Lean burn, which can result in damage to the valves and/or pistons, caused when the faulty EGR valve allows too much fresh air into the intake. When the opposite occurs, (too little fresh air), the idle speed can drop potentially not idling at all.
How long can you drive before getting your egr valve repaired on 1999 acura cl?
The exhaust gas recirculation (EGR) system has insufficient flow. It could be caused by the differential pressure feedback EGR sensor being faulty, there t is a blockage in the EGR tube (most likely from carbon buildup), the EGR valve is bad, or the EGR valve may not be opening.
In my case it is faulty EGR valve. It could be pollution filter as well.