OTC 7602 Port Fuel Injection Noid Lite for GM<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Flashes which indicates normal pulsing voltage</li><li>A proven test device to quickly determine if the electrical signal is present at the fuel injector</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41LrWDG-%2BdL.jpg" noproxy>