Some vehicles have an air intake temperature (IAT) sensor either mounted within their air filter duct hosing or built into their mass airflow sensor (MAF). This sensor measures intake air temperature using a thermistor. Thermistors measure temperature based on electrical resistance, with a drop in resistance equating to a rise in temperature. A P0113 code … Read more
While modern vehicle operating systems help prevent harmful emissions from leaking into the air, that wasn’t always the case. The first Environmental Protection Agency (EPA) emissions standards come from the 1970s. These regulations aim to prevent emissions that create smog. The evaporative emission control (EVAP) system is the primary system in your vehicle designed to … Read more
All vehicles have an evaporative emission control (EVAP) system specifically designed to prevent releasing toxins into the air. When you put your gas cap back on, it traps the fuel and its toxins inside. Fuel vapors go through a vent line into a charcoal canister, where activated charcoal absorbs some of the fumes. The electronic … Read more