1. The most economic way to check electronic fuel injection (EFI) signals.
2. Fast and easily checks for systems of GM TBI, Bosch PFI Ford TBI, GM PFI, Geo TBI and GM SCPI, just disconnect the fuel injector, plug the Noid Lite into injector, Plug the Noid Lite
into injector wiring harness then crank the engine.
3. IAC Signal Test Lights. Use testers for checking the electronic control module signal that provides direction to the idle air-control motor on GM vehicles with throttle body or port fuel injection systems. |