{"product_id":"mr-cartool-fuel-injector-tester-for-gdi-fsi-efi-8-mode-5v-12v-dual-channel-diagnostic-cleaner-kit","title":"MR CARTOOL Fuel Injector Tester for GDI\/FSI\/EFI — 8-Mode 5V\/12V Dual-Channel Diagnostic \u0026 Cleaner Kit","description":"\u003cb\u003eMR CARTOOL Fuel Injector Tester is a handheld 8-mode diagnostic and cleaning kit that checks injector spray, leakage, pulse and flow for GDI, FSI, EFI and most petrol injectors using selectable 5V\/12V outputs.\u003c\/b\u003e\n\n\u003cp\u003eThis compact tester combines a digital pulse generator with cleaning adapters and twin output channels so you can simulate engine conditions, compare injector performance and run ultrasonic or pressure cleaning cycles without removing the entire fuel rail. It’s built for DIY mechanics and professional workshops who need a fast, visual way to verify injector health and measure relative flow and spray characteristics across common injector types.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the tester reveal clogged, leaking, or damaged injectors?\u003c\/h3\u003e\n\u003cp\u003eThe unit creates repeatable electrical pulses while supplying selectable 5V or 12V drive, letting you observe spray patterns, listen for irregular operation and measure relative injection quantity. Its LCD displays the active pulse mode so you can reproduce test conditions and compare injectors side-by-side.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEight pulse modes simulate different engine RPM\/load scenarios for realistic testing.\u003c\/li\u003e\n  \u003cli\u003eTwo simultaneous output channels let you test two injectors at once for direct comparison.\u003c\/li\u003e\n  \u003cli\u003eVisible spray and audible feedback help identify dribbling, asymmetric spray, or no-spray failures.\u003c\/li\u003e\n  \u003cli\u003e12V\/5V selection accommodates modern and legacy injector drive circuits safely.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat connectors and accessories are included to fit various engines?\u003c\/h3\u003e\n\u003cp\u003eThe kit ships with six nozzle adapters that cover the majority of car and motorcycle injectors, enabling quick connections to common petrol injector shapes and sizes. Adapters allow you to attach the tester to injectors or to a fuel pressure\/cleaning rig without custom fittings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSix different nozzles to fit MPFI, TBI, CFI, GDI-adjacent styles and many motorcycle injectors.\u003c\/li\u003e\n  \u003cli\u003eLeads and clips to power the unit and make secure electrical contact to injector pins.\u003c\/li\u003e\n  \u003cli\u003eDual output terminals for parallel testing or faster diagnostics.\u003c\/li\u003e\n  \u003cli\u003eCompact case for organized storage and transport between jobs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it help when cleaning injectors and verifying improved performance?\u003c\/h3\u003e\n\u003cp\u003eYes — the tester’s pulse modes reproduce varying duty cycles so you can run cleaning solutions or ultrasonic baths while actively cycling injectors. After cleaning, repeat tests to confirm improved spray symmetry and increased flow consistency across cylinders.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse pulse patterns to mimic idle, cruise, and high-load injection to flush deposits under realistic conditions.\u003c\/li\u003e\n  \u003cli\u003eSwitch between 5V and 12V to match bench cleaning setups and injector drive requirements.\u003c\/li\u003e\n  \u003cli\u003eMonitor before-and-after spray characteristics to quantify cleaning effectiveness.\u003c\/li\u003e\n  \u003cli\u003eStop button prevents changing modes while running, protecting injectors and the rig.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this tool is for: technicians, home mechanics and motorcycle owners who service petrol engines and want a reliable way to diagnose injector faults, confirm cleaning results, or validate injector replacements without full engine teardown. It suits shops that need repeatable tests, fleets needing quick injector checks, and hobbyists who perform their own maintenance. The kit’s versatility across GDI\/FSI\/EFI and common injector families makes it a practical bench and field tool. MR CARTOOL includes a 90-day warranty and responsive customer support for setup questions or troubleshooting.\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 this tester run two injectors at once?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The MR CARTOOL has two pulse output channels so you can test two injectors simultaneously for direct comparison.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is it safe to use on modern GDI injectors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The unit supports selectable 5V and 12V outputs and multiple pulse modes, but follow manufacturer precautions and turn the engine off before connecting.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MR CARTOOL","offers":[{"title":"Default Title","offer_id":48087416471710,"sku":"B0DN5YJPKW","price":35.63,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/mrcartool-front-panel-display.jpg?v=1785923811","url":"https:\/\/northtrailauto.ca\/products\/mr-cartool-fuel-injector-tester-for-gdi-fsi-efi-8-mode-5v-12v-dual-channel-diagnostic-cleaner-kit","provider":"North Trail Auto","version":"1.0","type":"link"}