Recently purchased 1980 Trans Am, 4.9 L 301 Turbo. Just startinhg to uncover prior owners handy work. The car is in pretty rough shape but body is in tact - great project car and looking forward to working on it. The prior owner has a jumper on a 4 wire connector that is located directly.. 1980 trans am wiring diagram basic harnesses for 1977 81 ams 1981 79 pontiac transam exploring the inner workings of steering 1972 tran clarkshoes engine turbo 1979 schematic schema digital page 21 730 this site is a growing library q troubleshooting steps justanswer firebird dash guide Wiring Diagram diagram,wiring,schematic,structure Post.
Here is a very much improved and very legible color 1980 wiring diagram. This file is rather enormous, act accordingly. This is useful for a lot of issues of any year, but the arrangement of circuits on the instrument panel does not apply to any other years. The fusebox was heavily revised in 1980. Otherwise, mostly the same allowing for differences in numbers of light bulbs and boring stuff.. Find a detailed wiring diagram for the 1980 Pontiac Firebird Trans Am dashboard to assist with your restoration or repair project.