Air Leak Checks
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.
NOTE:
Manufacturer recommends using Scan Tool VAG 1551/1552 or VAS 5051/5052.
- Ensure exhaust system has no leaks. Connect scan tool, see DATA LINK CONNECTOR . Start engine and allow it to idle at closed throttle position. Observe scan tool Oxygen sensor (O2S) and RPM readings.
- Spray air intake system with Leak Detector Spray (G-001-800-A1). Air intake leaks will draw in leak detector spray. The spray reduces air/fuel mixture ignition and engine RPM, and decreases CO reading. Repair leaks as necessary.