Im sure the millionth p0446 question.
98 Yukon, p0446 code. From what I can tell, the module is in the front driver side of the engine compartment. My finger is on the end of the vent, i think, its got a sponge inside which i cleaned out. I think the actual valve is forward of the sponge cartridge. Do I need to pull that, test the voltage, and clean it? Maybe replace? What is the correct name for these two parts if i need to replace them. Thanks.