? Most economical way to check electronic fuel injection (EFI) signals ? Quick and easy operation. Simply disconnect fuel injectors, and plug the Noid Light into the injector wiring harness ? When engine is cranked, normal signals are indicated in rapid flashes of the Noid Light ? Either a constant light or no light at all confirms an EFI signal problem ? Checks systems of: Bosch PFI, GM PFI, GM TBI, GM SCPI, Ford TBI, Geo TBI.
Noid Light Set
