Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. With this limited-time deal at Amazon, the Kttool Fuel Injector ...

[Dino] is an auto mechanic and needed a way to test out fuel injectors. Commercially available tools start well over $100 and go up from there, but he built his own for about $20. The injectors have a ...