Audi AMB Service Manual page 587

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
via fuel pump relay.
Requirements
Fuse for secondary air injection solenoid valve OK --> Electrical Wiring Diagrams, Troubleshooting and

Component Locations
Fuel pump relay OK --> 24 - MULTIPORT FUEL INJECTION (MFI)

Disconnect connector at valve.

Fig. 392: Identifying 2-Pin Electrical Connector & Terminals
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Connect voltage tester VAG1527B as follows:

Connector contact
Briefly operate starter.

LED must light up

If LED does not light up:
Check for open circuit in wiring from contact 1 of connector through fuse to fuel pump relay. -->

Electrical Wiring Diagrams, Troubleshooting and Component Locations
If necessary, eliminate open circuit.

If LED lights up:
Check actuation.

Checking actuation
2005 Audi A4 Quattro
1
2:39:06 AM
Measure to
Engine Ground
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