Air Control Valve For Fuel Injectors, Function Checking

Test requirement
- Engine coolant temperature at least 85 °C (185 °F)

Checking
- Connect VAG 1551 (VAG 1552) Scan Tool (ST), and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (engine running at idle). Testing and Inspection

Indicated on display

Rapid data transfer HELP
Selecting function XX

- Press buttons -0- and -8- to select "Read Measuring Value Block" function 08, and press -Q- button to confirm input.

Indicated on display

Read Measuring Value Block
Input display group number XXX

- Press buttons -0-, -3- and -5- to input display group number 35, and press -Q- button to confirm input.

Indicated on display

Read Measuring Value Block 35 ->
1 2 3 4

- Check specified values for air control valve for fuel injectors (air-shrouded fuel injectors), display field 4:





Specified value in display field 4: A-IV OK

If display is not as specified:
- Press -4- button on VAG 1551 scan tool to select "Basic Setting" function 04.
- Check specified values for air control valve for fuel injectors (air-shrouded fuel injectors), display fields 2 and 4:





If display is not as specified:
- Check air lines for blockage.
- Check air control valve for fuel injectors.
- Press -> button to advance program sequence.
- Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.