If you missed o.
Bmw evap system.
P0442 bmw meaning the evaporative system monitoring permits the detection of leaks in the evaporative system with a diameter of 0 02 inches and up.
If you have a 1996 up bmw you have the obd ii diagnostic system that constantly monitors the sensors and solenoids on the engine.
In this class we cover the lesser known evap systems such as dm tl honda s bypass system some of the anomalies of the vw systems and more.
P0444 bmw description the evaporative emission system evap canister purge volume control solenoid valve uses a on off duty to control the flow rate of fuel vapor from the evap canister.
P0456 bmw meaning the evaporative system monitoring permits the detection of leaks in the evaporative system with a diameter of 0 02 inches and up.
The evap canister purge volume control solenoid valve is moved by on off pulses from the engine control module ecm.