... hand, too low fuel pressure during engine operation would make mixed gas too thin, which would cause ablation of injector, overheat of ... Kit can be used to test fuel supply system, such as fuel filter, fuel pressure regulator, fuel pipe, fuel pump and fuel nozzle, etc. It can be ... of Golf, Jetta, Red Flag, Audi 80 and Audi 100, gauge outfit can be combined with Connector 5, 6, 7 ...