Misfire Detection, Checking

Misfire detection, checking

Test sequence
- Connect vehicle diagnostic, testing and information system VAS 5051 or V.A.G 1551 Scan Tool and select engine electronics control module 1 with "Address word" 01. For this purpose, engine must be running at idle speed.
Connecting VAS 5051 Scan Tool
[1][2]Scan Tool Connecting and Initial Checks

Indicated on display


Rapid data transfer HELP
Select function XX


- Press keys 0 and 8 for function "Read measured value block" and confirm entry with Q key.

Indicated on display


Reading measured value block Q
Enter display group number XXX


- Press keys 0, 1 and 4 for "display group number 14" and confirm entry with Q key.

Indicated on display


Read measured value block 14 ->
1 2 3 4


- Check misfire detection.

Display Group 014:

If specified value is attained:
- Press key.

Display function selection):


Rapid data transfer HELP
Select functions XX

Evaluation display group 014, display zone 3:

Display Zone 3: