Misfiring Recognition, Checking

Misfire Recognition, Checking

Special tools and equipment







- VAS 5051 or VAG 1551

Test sequence
- Connect VAS5051 tester or VAG1551 scan tool and select the control module for engine electronics using "address word" 01. Connecting VAS 5051/VAG1551 Scan Tool
Engine must run at idle for this.

Indicated on display:


Rapid data transfer HELP
Select 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 Q
Input display group number XXX


- Press buttons -0-, -1- and -4- to select "display group number 014" and press -Q- button to confirm input.

Indicated on display:


Read measuring value block 14 ->
1 2 3 4


- Check misfire recognition.

Display Group 014:

If specified value is obtained:
- Press -> button.

Indicated on display (function selection):


Rapid data transfer HELP
Select function XX


Evaluation display group 003







The following measuring value blocks indicate combustion misfires of individual cylinders:

Display Group 015:

Display Group 016:

Evaluation of measuring value blocks 15 and 16