P0466 is a code for EVAP leak. Could be a simple as a bad/loose gas cap. Or is could be a purge valve on the engine or even the canister close valve on the fuel tank.
Means flow when purge not commanded. Bad or stuck purge valve Broken damaged or leaking vapor control system Bad purge control solenoid.
No.
This code indicates an incorrect Evaporative System Purge Control Valve flow. Can be caused by clogged, disconnected, or broken vacuum line between the EVAP Canister Purge Valve and intake manifold or bad Purge Valve itself.
To know if the purge valve on a 1996 VW golf 2.0 is bad, one can hear choking sounds from the engine cylinders. Fuel vapors are also building up inside the charcoal cylinder.
You can tell a bad valve by doing a compression test.
No. The purge valve is part of the EVAP system. The EVAP system reclaims and burns the gasoline fumes from the fuel tank and prevents the fumes from escaping into the atmosphere. A faulty purge valve would cause the "check engine" to illuminate but not cause the engine of the vehicle to "die".
Depends on the type of fault. A circuit code could mean the valve is bad. A performance code could mean that the hoses and lines going form the tank to the engine could be cracked.
You can tell when a manifold tuning valve is bad when oil is leaking through it. You also can tell by inserting the dipstick into the valve and seeing if oil comes out through the dipstick.
purge valve is bad causing fuel vapors from tank to go into intake flooding the engine.
mass air sensor or purge valve sensor could be a bad fuel pressure regulator
Diagnostics