OTC 6551 Fuel Injection Diagnostic Test Kit

The OTC 6551 is a Fuel Injection Diagnostic Test Kit. The kit test fuel injection systems on most GMs, including GM TBI, Ford, Chrysler and Jeep vehicles. The kit also diagnoses fuel-related problems, such as a weak fuel pump or restricted fuel filter and perform leak-down tests.

0–100 PSI fuel pressure gauge
17 of the popular OTC fuel injection adapters, each equipped with a quick-connect Schrader valve for safety
Replacement seal kit

Testing fuel injection systems on most GMs, including GM TBI, Ford, Chrysler and Jeep vehicles