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Ecm Plugs

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2. Tracing wires from the ECM plugs to their connection destinations on a junkyard harness can be a major pain. The whole loom may need to be cut apart, the wires sorted and unnecessary ones removed, and then wrapped back together to route properly around the engine and transmission. A number of self-contained engine/transmission control systems are available from Hotwire, and included in the bunch are the GM LT, LS, and Vortec engines and the Dodge Magnum, Hemi, and Viper engines-all are available with many automatic and manual transmission combinations.