How much will disconnecting the vacuum line at the valve alter a/f ratios?

I've disconnected it until the slide hammer I ordered comes in. I'm getting the obvious "Insufficient lift" cel. I'm just wondering if the a/f will get too lean in doing so.

Does the amount of fuel injected get altered when the ecu sees a lack of lift from the valve?

 

If you have a cel your egr is limp anyhow. should be okay.

 

i think with the egr code your going to be runing rich, nothing tooo major , but you will be getting crappier fuel MPG.