{"product_id":"dptool-fuel-injector-noid-light-test-kit-8-noid-lights-iac-tester-extension-lead-for-rapid-ecu-pulse-diagnosis","title":"DPTOOL Fuel Injector Noid Light Test Kit — 8 Noid Lights, IAC Tester \u0026 Extension Lead for Rapid ECU Pulse Diagnosis","description":"\u003cb\u003eDPTOOL Fuel Injector Noid Light Test Kit is a portable diagnostic set that shows whether fuel injectors and idle air control circuits are receiving pulses from the engine control unit.\u003c\/b\u003e\n\n\u003cp\u003eIf an engine runs poorly, stumbles, or stalls, you need to separate electrical problems from mechanical ones quickly. This noid light kit provides a straightforward, visual way to verify injector pulse and idle air control signals without complex equipment. The set includes multiple noid lights matched to common connector styles, an IAC tester, an extension lead and a compact case so you can test a wide range of vehicles on the workbench or roadside.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this kit help me find an injector electrical fault?\u003c\/h3\u003e\n\u003cp\u003eThe noid lights plug into an injector harness and flash when the ECU sends a pulse to open the injector. A flashing light confirms the wiring and control signal are present; a steady or dark light points to a wiring, connector, or ECU output issue. Using the kit eliminates guesswork and reduces diagnostic time compared with swapping parts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstant visual confirmation of injector pulses while cranking or idling\u003c\/li\u003e\n\u003cli\u003eHelps isolate wiring harness, connector, or ECU output problems\u003c\/li\u003e\n\u003cli\u003eNo need to remove injectors to test electrical feed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat connectors and circuits are covered by the DPTOOL set?\u003c\/h3\u003e\n\u003cp\u003eThe kit supplies eight noid lights designed to fit popular connector types—including multiple GM and Ford styles, Bosch PFI, and more—so you won’t need ad hoc adapters for most domestic and import cars. It also includes an IAC tester to check idle air control circuits and a flexible extension lead to reach cramped engine bays.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEight noid lights matching GM PFI\/TBI\/SCPI, Ford and Bosch patterns\u003c\/li\u003e\n\u003cli\u003eDedicated IAC tester for stepper or idle control diagnostics\u003c\/li\u003e\n\u003cli\u003eExtension lead for hard-to-reach harnesses and safer observation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the noid lights and IAC tester safely?\u003c\/h3\u003e\n\u003cp\u003eInstall the appropriate noid light into the injector connector where the harness plugs into the injector, then crank or run the engine briefly while watching the LED. For idle air control checks, connect the IAC tester to the IAC plug and cycle the key or engine as directed to observe movement or signal. Always follow vehicle safety practices: engine cool, parking brake on, and keep loose clothing and tools away from moving parts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlug into harness—do not inject into fuel lines—and observe LED while cranking\u003c\/li\u003e\n\u003cli\u003eUse extension to keep hands clear of belts and fans during tests\u003c\/li\u003e\n\u003cli\u003eWork on a stable surface and disconnect battery when servicing after diagnosis\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat results should I expect and what do they mean?\u003c\/h3\u003e\n\u003cp\u003eA rapidly flashing noid light indicates a normal injector pulse and proper ECU output. A continuously lit or non-flashing light suggests the pulse is absent or abnormal, pointing to wiring, connector corrosion, fuse, relay, or control module issues. The IAC tester helps determine whether the idle control device itself responds to commands or if the problem is upstream in the control circuit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFlashing light = injector receiving pulse from ECU\u003c\/li\u003e\n\u003cli\u003eNo flash or steady light = check wiring, grounds, fuses, or ECU output\u003c\/li\u003e\n\u003cli\u003eIAC tester movement = functioning idle control; no movement suggests circuit fault\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The DPTOOL Fuel Injector Noid Light Test Kit is built for professional mechanics, automotive technicians, and DIY enthusiasts who want a fast, reliable method for checking injector and idle control circuits across many vehicle makes. It’s ideal for shops diagnosing intermittent stumbles, no-start conditions, or poor idle behavior, and for anyone who prefers to confirm electrical function before replacing components.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this kit on any vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit covers many common GM, Ford, Bosch and TBI\/PFI connector types; it fits most domestic and many import vehicles but check connector compatibility first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the noid lights tell me why an injector won’t spray?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Noid lights confirm whether the injector is receiving a pulse; they don’t diagnose mechanical injector failure or fuel delivery issues.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DPTOOL","offers":[{"title":"Default Title","offer_id":48086340993182,"sku":"B09N79GY8J","price":42.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dptool-noid-kit-front-open-case.jpg?v=1785895551","url":"https:\/\/northtrailauto.ca\/products\/dptool-fuel-injector-noid-light-test-kit-8-noid-lights-iac-tester-extension-lead-for-rapid-ecu-pulse-diagnosis","provider":"North Trail Auto","version":"1.0","type":"link"}