I want to replace the EVAP pressure sensor. Where is the location of this?

Hello, Before servicing the EVAP system, make sure to diagnose the pressure sensor. Failing to diagnose the sensor cab result in buying unnecessary parts. The fuel system must be sealed at all times, except when the evap system is sucking vapors into the engine to be burned. If the gas cap leaks, the pressure sensor will report this lower pressure, setting the check engine light. If the pressure is too high, most often the sensor is bad. The EVAP system has several other components, and even a bad purge valve (on or near the intake manifold) can drop EVAP system pressure if the valve sticks open. Do a little testing, check your gas cap, and let me know what codes you are getting from scanning the van.