Ohio, I already told you, your crankcase if under vacum during idle, if your oil filler tube has come off, your vacum will not be too good, and your boost will lag. Your intake manifold connects to your engine crankcase and sucks the bad gases that the oil creates while hot SO if you have anyhoses from the block that have come off, like the oil filler tube or forgot to reinstall your oil dipstick, then you will have a vacum leak under idle and boost leak under acceleration. MYSTERY NO MORE!
Wish my car was running like champ.
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