Tank pressure sensor ME - fault code description - AD07.61-P-4000-21LA

		Fuel tank pressure sensor, signal implausible
1	Fault code ( Readout on generic scan tool)	P2072 (P0450)
2	Fault storage	after expiry of test duration and fault
2	Actuation CHECK ENGINE (MIL) malfunction indicator lamp	following two successive driving cycles with faults
3	Checking frequency	Continuous
4	Checked signal or status	tank pressure sensor signal
5	Fault setting conditions	Less than 3.3 V (equivalent to an approx. +5 mbar vacuum)
	Limit value	About 10 seconds per limit value
	Checking duration
6	Check prerequisites	idle cold start (coolant temperature less than +40°C).
6		If an engine at normal operating temperature has been shut down for long enough (coolant temperature dropped below +40°C), then the tank pressure must have been removed. If the sensor voltage exceeds the limit value, the tank pressure is too high. Either the fuel tank pressure sensor is defective or the activated charcoal canister is clogged. The leak test for purging will be locked out if there is a fault. Characteristic of the tank pressure sensor: - 50 mbar, about 0.5 volts; 0 mbar, about 3.0 volts; +30 mbar approx. 4.5 volts.