Passat L4-1984cc 2.0L DOHC (9A) (1990)
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^ display will appear as shown
^ press Q button to acknowledge input
^ display will appear as shown
Expanded Self-diagnosis: Function O8 "Read measuring value block"
When this function is selected:
^
The idle stabilization system and the carbon canister solenoid valve 1 are functioning.
^
Channel values are displayed over the entire RPM range.
^
Values for coolant temperature, RPM, etc. are displayed in the ten channels.
^
Channel 10 displays the ignition timing point as calculated by the control unit.
Note
An accurate Channel 10 display requires that the ignition timing point be properly adjusted (at the distributor).
Reading measuring value block with VAG 1551
^ push button 0 and 8 to select Function 08 "READ MEASURING VALUE BLOCK"
^ display will appear as shown
^ press 0 button to enter input
^ display will appear as shown
^ press 0 button two times
^ display will appear as shown
