service AUDI A4 1998 B5 / 1.G EVAP Workshop Manual

20-168

- Verify that valve on EVAP tester nitrogen
cylinder is open and that cylinder has sufficient
pressure before continuing.

Note:
If gauge still does not read within above range, contact K-Line Customer
Service - Technical Support for additional instructions before continuing.
If gauge leaks down:
If gauge continues to leak down: - Turn fine adjust regulator knob (arrow) until gauge reads 14 in. of
water; tighten lock nut.
- Check flow meter -4-. (upper illustration).
Meter must indicate no flow.
- Turn control valve to "Hold" position.
- Check gauge.
Gauge must hold pressure
- Verify that vehicle interface hose is firmly seated and repeat previous
six steps before continuing.
- Use ultrasonic tester (described later) to locate and repair leak before
continuing.
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20-169

Note:
If the leak cannot be located or repaired, contact
K-Line Customer Service - Technical Support.

Calibrate KLI9210 Tester
Determine vehicle leak threshold:

To m.y. 2000: leak threshold 0.040 in.

From m.y. 2001: leak threshold 0.020 in.

Test fuel cap - Attach test hose to appropriate preset port (black arrows).
- Turn control valve from "Hold" to "Test".
- Set flow meter flag (white arrow) at indicated value on flow meter.
- Turn control valve to "Hold"; remove test hose.
- Connect fuel cap tester to hose.

If no flow is indicated: - Screw fuel cap tightly to cap receiver (arrow).
- Turn control valve to "Test".
- Read flow meter on tester.
Pa
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ystem, servicin
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11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.5