Launch X431 CRP129E diagnostic tool will help identify engine ignition, fuel injection, air, and fuel ratio and can reduce vehicle emissions. In addition to multi-protocol testing with it, OBD2, EOBD, JOBD, KOBD, CRP 129E also supports system diagnostics of engines, ABS airbags, SRS, and transmission systems. When your car slips or moves hard, it can solve problems by reading the code with this diagnostic scanner for safe driving.