View post: Rivian Drops Impressive 2026 R1S and R1T Lease Deals for February – $6,500 Off & More. With this limited-time deal at Amazon, the Kttool Fuel Injector Tester is on sale for just $9, and it ...

[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 ...

Fiddle around with cars long enough and you’ll realize two things: first, anything beyond the simplest repairs will probably require some kind of specialized tool, and second, those tools can be ...