S4 V8-4.2L (BHF) (2004)
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Fuel Injector: Testing and Inspection
Check Fuel Injectors
Check Fuel Injectors
Recommended special tools and equipment
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V.A.G 1526A multimeter
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V.A.G 1527 B Voltage Tester
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V.A.G 1594A connector test kit
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V.A.G 1598/31 test box
Test requirements:
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Fuse for fuel injectors OK
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Fuel Pump (FP) Relay OK; checking.
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Parking brake engaged.
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Selector lever of automatic transmission in position "P" or "N".
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Ignition switched off.
NOTE: Voltage is supplied to the fuel injectors via the Fuel Pump (FP) relay.
Procedure
