GM FullFig. 3: Wiring Diagram Symbols; Fig. 4: 1988-98 GM-C/K Series Wiring Schematic; Fig. 5: 1988-98 GM-C/K Series Wiring Schematic; Fig. 6: 1988-90 GM-R/V Series Wiring Schematic; Get to Know Your Truck’s Wiring. Typical electrical problems include bad batteries, alternators, and starters, along with blown fuses and bad battery cables. Some ...
1995 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L601995 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E or 4L80-E). Fuel Injection Computer Connector Wire Identification. Pin Identification. Red and Blue Computer Connector Wire ID.
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TBI Connversion wiring and diagrams!Here's a list of the pins but they are also on the wiring diagrams above. A1- grn/wht- this wire is used to energize the fuel pump relay. A2- not used A3- not used A4- gry- to EGR relay.(optional) This is a ground from the ECM to control the EGR relay. A5- brn/wht- SES(service eng soon) light. This is a ground to turn on the light.
Fuel Injection Conversion using a GM TBI EFI system!One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using the 1227747 ECM. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article.
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