Detects engine ping for timing adjustment.
FITS:
- 1985-1992 Golf/Jetta 1.8L 8v
- 1987-1989 Golf/Jetta 1.8L 16v
- 1997-2000 B5 Passat/A4 1.8T
Audi B5 A4 All 1.8T
Audi C5 A6 All 4.2
Audi C5 S6 All 4.2
Volkswagen Corrado All G60
Volkswagen Golf II All 16v
Volkswagen Golf II All 8v
Volkswagen Jetta II All 16v
Volkswagen Jetta II All 8v
Volkswagen Passat B3 All 16v
Volkswagen Passat B5 All 1.8T
Volkswagen Scirocco II All 16v
Volkswagen Scirocco II All 8v
Volkswagen Touareg 1 All V8
