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International Automotive Technicians Network
Re: GM J39021 Injector tester
Posted to Tool & Equipment Forum on 11/9/2012

Thank you to all who replied. Mike you were right on with the 5.5 seconds. Evidently the two tools are pretty much the same. I had run the test at 5.5 secs with jumper wires to the injector (I found out the Tech 2 will not let you operate the injector with the... Login to read more.