5 hoses, each on both sides with coupling. -Adapter hose with M12 x 1.5 mm internal thread and quick coupling. Car Vehicle Cylinder Leak-Down Tester Leakage Petrol Engine Compression Detector. for the following injection systems: K-Jettronic, L/LH-Jetronic, Motronic, Motronic-Jetronic,MPFI, TBI, EFI, DIGIFANT 1/2, CIS-Digital, Spi, Singlepoint, Multipoint.