TT Coupe L4-1.8L Turbo (ATC) (2001)
Checking injection quantity
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Insert fuel injector to be tested in a measuring glass from VAG 1602 injection quantity test device.
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Connect one terminal of fuel injector to engine Ground using an adapter cable and an alligator clip from VAG 1594A connector test kit.
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Connect the second terminal of fuel injector to B+ using VAG 1348/3A remote control, VAG 1348/3 - 2 adapter cable and assisting cable.
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Switch ignition on.
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Fuel Pump (FP) must run
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Activate VAG 1348/3A remote control for 30 seconds.
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Perform measurement on all fuel injectors.
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After all four fuel injectors have been activated, place measuring glasses on an even surface.
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Specified value for each fuel injector: 145 ± 12 ml
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If measured value of one or more fuel injectors is outside of specified range, switch Fuel Pump (FP) off (switch ignition off) and replace
malfunctioning fuel injector.
NOTE: Also check spray pattern when checking injection quantity. Spray pattern must be the same for all injectors.
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Remove fuel injectors together with fuel distributor.