Features and Benefits:

• Quickly, easily and economically test electronic fuel injection signals.
• Supplied with Noid Lights to check GM TBI, Bosch PFI, Ford TBI, GM PFI, Geo TBI and GM SCPI.
• Easy to use - just disconnect the wiring to the fuel injectors, install the Noid Light into the injector wiring harness and crank or start the engine. A flashing light indicates normal pulsing voltage. A steady light or no light indicates an electrical problem.
• Supplied with instructions in a durable, plastic molded storage case.