A8L V8-4.2L (BFM) (2004)
Air Injection Vacuum Control Solenoid Valve: Testing and Inspection
Secondary Air Injection (AIR) Solenoid Valve -N112-, Checking
Electrical testing of intake manifold change-over valve
-
Disconnect connector from Secondary Air Injection (AIR) Solenoid Valve -N112-.
-
Perform a resistance measurement between terminals on valve using V.A.G 1526.
Specified value: 25 to 35 Ohms
If specified value is not obtained.
-
Replace Secondary Air Injection (AIR) Solenoid Valve -N112-.
If specified value is obtained.
-
Check voltage supply. See: Fuel Delivery and Air Induction/Variable Induction System/Variable Induction Control Valve/Testing and Inspection
Checking voltage supply from Secondary Air Injection (AIR) Solenoid Valve -N112-
-
Connect V.A.G 1527 voltage test lamp between connector terminal 2 and engine Ground (GND) using adapter cables from V.A.G 1594 connector
test kit.
-
Switch ignition on.
LED must light up.
-
LED does not light up.