Engine code P0452?

I've got a 01chevy blazer, the engine code P0452 (Evaporative Emission System Pressure Sensor/Switch low input) is scanning. I've changed the fuel tank pressure sensor and still have a check engine light. Has anyone else had this problem?

check all your hoses in that system you may have a crack in one causing your sensor to fault

have you checked your gas cap?

check ur muffler bearing

Edited: 2/16/2009 9:13:34 PM by okcustoms

A Gas cap would be a p0455 large evap leak, i would check the wiring.