A vacuum leak can cause a variety of drivability issues in your vehicle. Here's how you can isolate the leak and the steps you should take to fix it.

The manifold absolute pressure sensor reads the amount of pressure or vacuum (also called “engine load”) in the intake manifold, where outside air is divvied up in proper amounts and distributed to ...

Modern vehicles rely on a massive amount of electrical systems, sensors, and control modules to keep the wheels turning. Some of those devices are well-known, like your car's main computer or engine ...

Your car is full of electrical components that monitor and control various systems and functions. There are so many that it can be a real pain when one or more of them starts to act up. Complicating ...

One of the most difficult tuning problems to overcome is the seemingly ever-present engine vacuum leak. Vacuum is an important component of the internal-combustion process because it controls basic ...

The volumetric efficiency table is probably the most important one in any ECU.The vertical axis is engine load, in this case, MAP, manifold absolute pressure, which is the pressure inside the intake ...