Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998)
If fuel loss is greater:
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Replace malfunctioning fuel injector, item 7 .
Note the following when installing the fuel injectors:
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Replace O-rings on all fuel injectors and wet them slightly with clean motor oil.
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Insert fuel injectors into fuel rail perpendicular and in the right position, and secure them with retaining clips.
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Position fuel rail on intake manifold using secured fuel injectors and apply uniform pressure to press it in.
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
Checking Injection Quantity
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Insert a fuel injector to be tested into a measuring tube of V.A.G 1602 tester for fuel injection quantity.
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Using respective adapter cables, connect one terminal of fuel injector to be checked to engine Ground (GND).
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Use adapter cable to connect second terminal of fuel injector to V.A.G 1348/3 remote control connection with V.A.G 1348/3-2 adapter cable.
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Connect alligator clip to B+.
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Switch ignition on.
Vehicles with engine code AHA
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Bridge sockets 1 + 4 of test box with the respective adapter cables.
Fuel Pump (FP) must run.
Vehicles with engine code ATQ
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Bridge sockets 62 + 65 of test box with the respective adapter cables.
Fuel Pump (FP) must run.
Continuation for all vehicles
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Operate V.A.G 1348/3 remote control connection for 30 seconds.
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Repeat test on other fuel injectors. Use new graduated measuring glasses for this.
NOTE: Also check spray pattern when checking injection quantity. Spray pattern must be the same for all injectors
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After all fuel injectors have been activated, place graduated measuring glasses on a level surface and compare quantity of injected fuel. Specified
value: 90 to 125 ml per injector
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Disconnect connection between test box sockets.
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Switch ignition off.