Bmw X5 Evap System

P0444 bmw description the evaporative emission system canister purge volume control solenoid valve uses a on off duty to control the flow rate of fuel vapor from the evap canister.

Bmw x5 evap system.

The longer the on pulse the greater the amount of. 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. By means of a diagnostic module tank leakage dmtl an electrically actuated pump located at the atmospheric connection of the evaporative canister a pressure test of the evaporative system is. The engine control module monitors for leaks and actuator malfunctions based on the evap pressure.

P2402 bmw description 5 hours after the ignition switch is turned off the electric vacuum pump creates negative pressure vacuum in the evap evaporative emission system. It means a very small leak has been detected. The evap canister purge volume control solenoid valve is moved by on off pulses from the engine control module.