Actuation of EVAP canister purge regulator valve -N80- (fuel tank breather valve)
WARNING: This page is about a different car, the 2003 Audi RS 6. However, it is still accessible from the selected car via links, so may be relevant.
Indicated on VAS 5051:
Fig 1: Function Display VAS 5051 - Final Control Diagnosis (EVAP Canister Purge Regulator Valve -N80-)
- - Control element test waiting - Selection of next step required
- - EVAP canister purge regulator valve -N80-
- Touch > key.
Indicated on VAS 5051:
- - Control element test in progress - Selection of next step permitted
- This valve is actuated intermittently (clicks) for approximately 1 minute unless next control element is selected beforehand by touching--> key.
NOTE:
The two fuel pumps must run during the actuation period. The flow noise is clearly audible at the fuel pressure regulator. If the fuel pumps do not run, check actuation. See FUEL PUMP RELAY -J17-, CHECKING AND CHECKING ACTUATION
.
If valve is not actuated (does not click):
- Check EVAP canister purge regulator valve -N80-. See EVAP CANISTER PURGE REGULATOR VALVE -N80-, CHECKING .