OTC (3054E Noid Lite/IAC Test Kit Simplest method for eliminating the EFI system or idle air control as possible faults on no-start vehicles Disconnect the fuel injectors, plug in a Noid Lite, and crank the engine A flashing light indicates normal pulsing voltage Expanded set of eight specific Noid Lites covers: GM PFI, Ford TBI, Geo TBI, Bosch PFI, GM TBI, GM SCPI, and now new applications of Bosch 2 and Multec 2, plus two GM IAC testers (flat and square four connector applications) with red and green LEDs Includes a molded plastic case and harness extension that allows for convenient remote viewing from the driver's seat