A6 Sedan V6-2.8L (AHA) (1998)
Fuel Injector: Testing and Inspection
Fuel Injectors, Checking For Leakage
Fuel injectors, checking for leakage
WARNING!
Fire hazard! Do not smoke, work near heaters or open flame, or have anything nearby that could ignite fuel. The fuel system is under pressure.
Before opening, cover connections with a rag, and open carefully to release pressure.
Required special tools and test equipment
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VW 1594 connector test kit
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VAG 1348/3A remote control connection
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VAG 1348/3-2 adapter cable
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VAG 16O2 fuel analyzer
Test requirement
Fuel pressure regulator OK See: Fuel Pressure Regulator/Testing and Inspection
Checking
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Remove intake air hose between MAF sensor and intake air noise muffler.
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Remove vacuum hose from Intake Manifold Tuning (IMT) valve -N156- (change-over valve).
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Remove 5-pin connector from ignition coils, 2-pin connector from valve for camshaft adjustment -N208- (bank 2) and 2-pin connector from
camshaft position sensor 2 -G163- (bank 1).
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Disconnect wiring harness from clips on fuel rail.
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Disconnect fuel rail from intake manifold and remove fuel lines together with injectors (arrows).
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Remove vacuum hose from fuel pressure regulator.
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Remove harness connectors from all injectors.
Checking injection amount