transmission AUDI A4 1997 B5 / 1.G AFC Engine Idle Speed Checking Workshop Manual

24-16


Idle speed, checking

Notes:

Idle speed can NOT be manually adjusted.
Idle speed is checked during "Basic Setting"
function 04. After selecting function 04, the
learning values for idle speed and oxygen
sensor control are relearned (idle speed and
CO content are adjusted independently)
page 01
-150
.

CO content is controlled by oxygen sensor
control for a specified value. Interference within
oxygen sensor control will be captured via the
On Board Diagnostic system and stored in DTC
memory.

Checking requirements:
Engine coolant temperature: 85 C (185 F)
minimum

All electrical consumers must be switched off
(A/C, rear window defroster, etc.)
Transmission range selector lever in "P" or
"N" position
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