P0440 Help
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P0440 Help
Hi everyone. My 01 LS has been having quite a few fits recently unfortunately. I now have a CEL on and after scanning I am seeing P0440. I have checked the gas cap and all hoses are fine. My air intake manifold piece was cracked and I fixed that with some vacuum connectors. I am thinking that might be my problem but I have been running with that part cracked and the hose disconnected for weeks with no CEL. No that i've reconnected it I am getting a CEL. Any thoughts?
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