My first CEL
Got the dreaded yellow CEL today, for the first time.
The Actron says "P0453 Evaporative Emission System Pressure Sensor / Switch High Input".
After reading the threads it looks like the fuel pressure is high in the tank? Could this be a restricted vent, or a bad sensor?
I removed the left intake manifold and installed the stock airbox this weekend. Could I have done something to cause the CEL? I don't even know where the sensor is, or how the fuel tank vents.
I deleted the code, and it came right back, but the CEL is off, for now (I expect it to turn back on). The Actron doesn't seem to display anything like fuel pressure that I could see in its real time input.
Any idea where this sensor is?
Last edited by DG Boxster; 05-29-2014 at 04:46 PM.
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