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Gm Ignition Module Wiring Diagram, Learn how to correctly wire a 4 pin HEI module in your GM vehicle to ensure proper ignition and improved performance. Fuse box diagram (location and assignment of electrical fuses and relays) for Chevrolet (Chevy) Express (2003, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 When mounting the GM 4-pin HEI module, always fasten it with dielectric, thermal or heat sink grease/paste on a clean, flat aluminum plate with plenty of fresh air circulation to dissipate the heat while in operation. Breathe new life into your Camaro, Chevelle, Corvette, C10, or other Chevrolet big block-powered GM product! GM HEI Distributors: Wiring diagrams are provided for GM HEI with a 4-Pin Module (Magnetic Pickup Trigger) and GM HEI with a 5 or 7-Pin Module (Points Trigger). . Optional Wiring: Instructions are also provided for wiring optional features such as Start Retard, Three Step RPM Limits, RPM Activated Switch, Multi-Step Retard, and a Tachometer. Step-by-step wiring diagram for GM ignition switch with clear connections and color codes to assist in proper installation and troubleshooting. Get a detailed wiring diagram for the GM ignition control module to ensure proper installation and troubleshooting. Schematic 4L60E transmission wiring diagram with clear pinout details, connector views, and color codes for troubleshooting and repair of GM automatic transmissions. A GM ignition wiring diagram provides information about the wiring color codes, wire locations, and connections for the ignition switch, ignition coil, ignition control module, and other related components. New high quality GM 4-pin HEI electronic ignition control module with two small flat washers (goes between the module and mounting surface) and two 8-32 UNC x 5/16" hex head self-threading screws (not self-tapping). 2pu1n, iwfgmibd, tbho, olg, mk, wb, it6an, kcr, tm4, 99,