I would like your advice on how to adjust the idle speed of my 1998 Nissan Patrol diesel turbo. The recommended idle speed for 4x4 is 650, but mine is at 800. The engine has a drive-by-wire throttle ...

Little things can make a big difference in how an engine performs. Street engines spend a lot of time at idle and off-idle speeds, so on carbureted engines it's important that the idle mixture be ...

"Hey, how tough can it be? Just turn the screw and you're done, right?" There's a lot more to learn about setting idle mixture than just turning a couple of screws and slamming the hood closed. You ...