Category: Car Knowledge Center

What is Engine Knocking and What Causes it?

Definition of Engine Knock For the purpose of this article, we will be talking specifically about spark knock, which is caused by pre-ignition (the ignition of the mixture prior to the spark plug firing) or detonation (the spontaneous combustion of the remaining fuel/air mixture in the chamber). Check out this video of an F-150 for...

Game of Thrones Characters as Cars

!!!THIS IS EXTREMELY IMPORTANT INFORMATION!!! After about 100 years of waiting, Game of Thrones fans’ prayers were finally answered when the show premiered its 8th and final season last Sunday. FIXD’s office (which is filled with GoT fanatics) has been abuzz with heated debate for months now over the fates of our individual favorite characters,...

Intake Air Temperature (IAT) Sensor

What is the Intake Air Temperature (IAT) Sensor? The Intake Air Temperature (IAT) Sensor is used by the engine’s Power Control Module (PCM) to decide at which rate the engine should spark and inject fuel to obtain optimal performance. This is possible because the IAT sensor uses the air density and air temperature in the...

Mass Air Flow (MAF) Sensor

What is a Mass Air Flow (MAF) Sensor? The Mass Air Flow (MAF) sensor measures the amount of air that enters the intake system of the internal combustion engine. There are multiple types of Mass Air Flow sensors but the most popular type is hot wire sensors. Often times, an internal air temperature (IAT) sensor...

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