Your '80s to early '90s General Motors (GM) OBD-1 car won't start or is hard to start and you can't find anyone to work on it. What do you need to diagnose and repair it? I will explain the basic concepts using my 305 Tuned Port Injection (TPI) 3rd Gen Camaro IROC-Z. I will go though the tools and service information and then show the HEI ignition components ( cap / rotor / wires / ignition control module / pickup and discuss how they might fail. These basic techniques apply to Chevrolet, Buick, Cadillac, Oldsmobile and Pontiac cars with 4 cylinder, 6 cylinder or V8 engines. I will go through the Tuned Port Injection in depth walking through the trouble trees. and discuss some of the differences with computer controlled carburetors and throttle body injection (TBI). Each GM model will have its own specific details because they all have slightly different sensors and actuators.
 
DISCLAIMER: In my videos, I provide demonstrations, suggestions, and opinions on techniques, methods, and materials for various projects. While I try to be sure that what I share is accurate, there are no guarantees, expressed or implied, that my information is correct and will work for you. If you wish to use any of this information, you must check and verify that it is appropriate for your use - use it at your risk. Do-it-yourself projects are variable and there are risks in conducting them.