Misfire Recognition, Checking

Misfire Recognition, Checking

Special tools and equipment
- VAG 1551/1552 Scan Tool using VAG 1551/3 adapter cable

Test sequence
- Connect VAG 1551 (VAG 1552) Scan Tool. Refer to Scan Tool Testing/VAG 1551 Scan Tool. Testing and Inspection
- With engine idling, press buttons -0- and -1- to select "Engine electronics" address word 01.

Display will appear as shown

Rapid data transfer HELP
Select function XX

- Press buttons -0- and -8- to select "Read measuring value block".
- Press -Q- button to enter selection.

Display will appear as shown

Read measuring value block HELP
Input Display group number XXX

- Press buttons -1-, -1- and -0- to select "Display group number 110".
- Press -Q- button to enter selection.

Display will appear as shown (1 to 4 = Display fields)

Read measuring value block 110 ->
1 2 3 4

- Check misfiring recognition spec (Display fields 2 to 4).

Display Group 110:

- Read-out Readiness code. Refer to Monitors, Trip and/or Drive Cycle (Readiness Codes)/Readiness Code Checking. Testing and Inspection

If DTC memory has been erased:
- Create Readiness code. Refer to Monitors, Trip and/or Drive Cycle (Readiness Codes)/Readiness Code Generating Testing and Inspection
- Press -> button.
- Press buttons -0- and -6- to select "End output".
- Press -Q- button to enter selection.

Evaluating Display group 110