Checking injector flow capacity
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Checking injector flow capacity
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1.
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Remove the fuel rail with injectors as described in steps 1-6 in the section “injectors, see
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2.
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Start the fuel pump by connecting jumper lead 83 93 886 between fuses 4 and 32. Make sure the injectors are not leaking.
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3.
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Connect test hose 83 94 405 to the injector being tested and place the other end into a measuring glass. Connect the valve to battery voltage using cable 86 11 410 and jumper cable 86 11 345 . Activate the valve for exactly 30s and then check that the amount of fuel in the measuring glass is 126± 5 ml. The maximum difference allowed between injectors is 18 ml.
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4.
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Change any defective injectors.
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Warning
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Provide adequate ventilation!
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1.
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Fit the fuel rail and injectors. Make sure the correct connector is plugged to the relevant injector.
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Checking fuel pressure
See Service Manual "2:3 Fuel System" for checking the fuel pressure/fuel pressure regulator.
