While carbon buildup happens on essentially all engines, gasoline, diesel, N/A, or boosted, it's an increased concern in GDI engines. Standard Electronic Fuel Injection features injectors higher in ...

Cleaning the idle air control valve (IACV) on your vehicle periodically helps keep carbon and other particles from building up on the valve, which can negatively affect the operation of the car.

What we're doing is that I'll be showing you how I usually clean intake valve deposits on gasoline direct injection engines on the DIY, efficiently, and with consistent good results, and then along ...