The most economic way to check electronic fuel injection (EFI) signals
Quickly and easily checks for systems of GM TBI, Bosch PFI Ford TBI, GM PFI, Geo TBI and GM SCPI
To test, just disconnect the fuel injectors, plug the Noid Lite into injector wiring harness then crank the engine
Normal voltage is indicated by flashing light which is visible from passenger compartment
Blow molded case for easy storage and transport