& Ignition, Repair Group 01
Notes:
The secondary air injection system injects air
behind the exhaust valves during a cold start.
Cold start means engine coolant temperature
between 8-65 C (46-149 F). The amount of
air injected is temperature dependent.
The need for secondary air is triggered by the
Motronic Engine Control Module (ECM) -J220-
via the Secondary Air Injection (AIR) Injection
pump relay -J299- to the Secondary Air
Injection (AIR) solenoid valve -N112- and the
two combination valves.
When "Basic Setting" (scan tool function 04) is
initiated, a diagnosis for the secondary air
injection system can be carried out. The
diagnostics consists of a flow test and a leak
test.
Pa
ge 2 of 10 Secondar
y Air In
jection
(AIR
) system
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.26.2
