The fuel tank pressure sensor is part of the fuel pump assembly and is mounted on top of the tank or inside the tank. It’s part of the evaporative emissions system (commonly referred to as ...

The fuel tank pressure sensor measures positive and negative pressure in the fuel tank. During EVAP monitoring, the PCM uses this pressure to detect vapor leakages in the fuel tank and will trigger a ...

Melexis’ MLX90821 relative pressure sensor IC offers reliable measurement of fuel vapor pressure from 50 to 700 mbar.

Melexis has launched the MLX90821, a relative pressure sensor IC designed for measuring very low pressures in automotive applications.

When the PCM sends a signal to open the valve, the valve allows the fuel vapors to flow into the engine. When the valve is closed, the fuel vapors are trapped in the evaporative canister and held ...

The problem, Ford says, is that a faulty purge valve in the fuel tank's evaporative emission-control system (EVAP) may remain open when it shouldn't, which can then send liquid fuel into the EVAP ...

According to GM, overfilling the gas tank on its vehicles beyond three clicks past the automatic fuel nozzle shutoff could make liquid fuel enter the evaporative emissions (evap) system vapor lines.

Overfilling your GM vehicle fuel tank could result in several engine performance issues and fuel system issues, as explained in a recent report.

If your car is showing any of these symptoms of an EVAP leak, you should get it repaired quickly. Here's everything you need to know including the cost.