EuroVan (2.8L AES)
WARNING: This page is about a different car, the 2002 Volkswagen EuroVan, 2001 Volkswagen EuroVan, and 2000 Volkswagen EuroVan. However, it is still accessible from the selected car via links, so may be relevant.
Specification (11 to 13 degrees BTDC) in Display in Field "3" on scan tool with engine at 650-750 RPM. Display Field "4" should display a maximum of plus or minus 2 degrees from reading in Display Field "3" at 650-750 RPM.
Checking ignition timing advance. Specification (0 to 50 degrees BTDC) in Display Field "3" with engine at 650-6000 RPM and (0 to 40) degrees in Display Field "4".