OTC 6550 Master Fuel Injection Kit Tests fuel injection systems on most GMs including GM TBI Ford Chrysler and Jeep vehicles Works on imports including CIS and CISE fuel systems With this new kit you can diagnose fuel-related problems such as a weak fuel pump or restricted fuel filter and perform leak-down tests Kit includes 0-100 PSI fuel pressure gauge and 35 of the popular OTC fuel injection adapters each equipped with a quick-connect Schrader valve for safety Replacement seal kit also included