fuel pressure AUDI A4 2000 B5 / 1.G AWM Engine Output Diagnostic Test Mode Workshop Manual

01-54

Activating the EVAP canister purge regulator
valve (tank ventilation valve)

Note:
The Fuel Pump (FP) relay must trigger, the Fuel
Pump (FP) must run, flowing noise at fuel
pressure regulator is clearly audible. If Fuel
Pump (FP) does not run, check activation
Page 24
-55
.

Display on VAS5051:
If valve is not activated (does not click): A - 1. Actuator in test
1 - EVAP canister purge regulator valve -N80-
This valve is activated for approx. 1 minute (clicks), unless
button is pressed first to switch to the next actuator.
- Check Evaporative Emission (EVAP) canister purge regulator valve -
N80- Page 24
-114
.
Pa
ge 5 of 16 Out
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gnostic Test Mode
(DTM
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)
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