Volkswagen Golf 1999 Service Manual page 403

Secondary air system
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EVAP system, checking using KLI 9210
tester
Introduction
The KLI 9210 EVAP tester allows testing using
nitrogen to pressurize the EVAP system and a
smoke generator or ultrasonic tester to locate the
source of EVAP system concerns.
This procedure is intended as a general guide for
the use of the EVAP tester. EVAP systems vary
between models.
Special tools and equipment
VAS 5051 or VAS 5052 diagnostic tester
KLI 9210 EVAP system tester (set to 14 in.
H O)
2
Light source (for viewing smoke)
Special tool 3094 or equivalent
Using the KLI 9210 EVAP system tester
Tester operating instructions
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