Jetta V6-2.8L (BDF) (2002)
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The connectors must audibly engage in the fuel injectors when pushed on.
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Check DTC memory, repair malfunctions if necessary and then erase DTC memory. Refer to "Displaying and Reading Trouble Codes/With
Manufacturer Scan Tool/DTC Memory Checking and Erasing",
See: Computers and Control Systems/Testing and Inspection
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Erase learned values and adapt Motronic Engine Control Module (ECM) -J220- again. Refer to "Computers and Control Systems/Engine Control
Module".
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Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery
positive (B+), the readiness code must be generated again. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Reading Readiness
Code".
See: Computers and Control Systems/Testing and Inspection
Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Generating Readiness Code".
See: Computers and Control Systems/Testing and Inspection
Checking quantity injected
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Remove wiper arms and cowl panel:
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Connect VAG 1598/31 test box to control module wiring harness. The Motronic Engine Control Module (ECM) -J220- remains disconnected.
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Switch on ignition.
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Jumper test box sockets 2 and 65 using adapter cables from VAG 1594. The fuel pump must run.
NOTE This work sequence allows the fuel pump to run when the engine is not running.
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Insert fuel injector to be checked in a measuring glass of calibration tester VAG 1602.
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Connect one terminal of the fuel injector to be tested to engine ground (GND) using adapter cables from VAG 1594.
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Using adapter cables connect the second fuel injector terminal to remote control VAG 1348/3 with adapter cable VAG 1348/3-2.
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Connect crocodile clip to battery (+).
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Operate remote control VAG 1348/3 for 30 seconds.
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Repeat check on the other fuel injectors. Use another (clean and dry) measuring beaker for this.
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After all fuel injectors have been activated, place the measuring glasses on a horizontal surface and compare the quantity injected.
Specification: 110 to 130 ml per fuel injector
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Switch off ignition.
If the measured values of one or more fuel injectors are above or below the prescribed specifications:
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Replace faulty fuel injector, item 7.