Quote:
Originally Posted by Weasel
The valve should have a small vacuum line going to it to activate/open the valve. That hose likes to get brittle and flaky to the point of breaking over the years... I'd check that hose first as it is a quick and easy fix if that is the case.
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+1
this was my fix. just make sure you delete the codes. you can test the pump and the valve easily. you should be able to hear the valve actuate if you put a vacuum on the line via sucking on the one end. just dont do it while anyone is watching.
added: you could have a bad oxygen sensor, but i think it would throw other codes.