This harness will connect an. Computer to your OBD2 tool outside of the vehicle using a standard USA wall outlet. OBD2 & E67 Connector are refurbished factory parts put together with a power supply & ignition switch to create this useful harness.Depending on the type of work you want to use this for, you may need additional hardware. The item "E67 ECM Engine Module Bench Harness For GM Chevrolet GMC Hummer 5.3L 6.0L 7.0L" is in sale since Wednesday, November 18, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Computer, Chip, Cruise Control\Engine Computers". The seller is "vegterauto1" and is located in Cape Coral, Florida. This item can be shipped to United States.