RS 6 V8-4.2L Turbo (BCY) (2003)
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Check for continuity in wiring from socket 1 via fuse for injectors to fuel pump relay and eliminate open circuit if necessary.
Checking wiring
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Switch off ignition.
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Disconnect connector at injector to be checked.
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Connect test box V.A.G 1598/31 at wiring harness to engine control module. Actual engine control module is not to be connected. See: Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Connecting and Initial Checks/Wiring And Component
Check Using Test Box V.A.G 1598/31
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Check for open circuit and short to Ground/positive in following wiring:
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Eliminate open circuit in wiring/short circuit if necessary.
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If wiring is OK, replace engine control module.