Volkswagen Workshop Service and Repair Manuals > Golf Mk6 > Power unit | 4-cylinder injection engine (1.4 l engine) | Mixture preparation system, electronic inj.,Gas | Checking components | Checking injectors for leaks and quantity injected (vehicles model year 2006 ?)

Checking quantity injected

Test prerequisites

l	The fuel pressure must be OK. Checking → Chapter.

l	Injectors installed in fuel rail and fuel line connected.

–	Insert injector to be checked into measuring glass from injection rate tester -V.A.G 1602-.

–	Connect remote control for V.A.G 1348 -V.A.G 1348/3A- to contact -5- of fuel pump and battery positive (+) using adapter cables from auxiliary measuring set -V.A.G 1594C-.

–	Connect contact -1- on connector and contact -1- on fuel pump using adapter cables from auxiliary measuring set -V.A.G 1594C-.

–	Connect a contact of injector to be tested to battery (+) using test cable from auxiliary measuring set -V.A.G 1594 C--1-.

–	Connect 2nd contact of injector to engine earth using auxiliary measuring set -V.A.G 1594 C--2-.

–	Operate remote control -V.A.G 1348/3 A- for 30 seconds.

–	Repeat check on other injectors. Use new measuring beakers.

–	After all injectors have been activated, place measuring beakers on a level surface and compare the quantity injected. Specification: 60…80 ml per injector.

When checking the quantity injected, check the spray pattern as well. The spray patterns must be the same for all injectors.

If the measured values of one or more injectors are above or below the prescribed specifications:

–	Renew defective injector → Chapter.