remote control AUDI A4 2000 B5 / 1.G ATQ Engine Motronic Injection System Servicing Workshop Manual

24-47

Checking Proper Seal

- Check proper seal of fuel injectors (visual
inspection). With Fuel Pump (FP) running, only 1
to 2 drops per minute may drip out per injector.

- If fuel loss is greater, stop Fuel Pump (FP) from
running (disconnect cable bridge) and replace
faulty fuel injector Page 24
-43
.

Checking Injection Quantity

- Insert fuel injector to be tested in a measuring glass from VAG1602
injection quantity test device.

- Connect one terminal of fuel injector to engine Ground (GND) using an
adapter cable and an alligator clip from VAG1594A connector test kit.
- Connect the second terminal of fuel injector to B+ using VAG1348/3A
remote control, VAG1348/3-2 adapter cable and assisting cable.
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24-48

- Bridge terminals 1 and 65 at test box using wires
from VAG1594A adapter test kit.


Fuel Pump (FP) must run.

- Operate VAG1348/3A remote control for 30
seconds.

- After all three fuel injectors of one cylinder row
have been activated, place measuring glasses
on an even surface.

Specified value for each fuel injector: 90 to
125 ml.

- If measured value of one or more fuel injectors
is outside of specified range, switch Fuel Pump
(FP) off (disconnect cable bridge) and replace
faulty fuel injector Page 24
-43
.

- Repeat test at fuel injectors of second cylinder
row.

- If the measured values of all fuel injectors are
outside the specified range, check fuel pressure
Page 24
-30
.

Note:
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