Str8JDMCRX

1998 crx with a gsr swap, ill be driving down the road and once i hit high rpms like 7000 and then let off and come to a light it falls on its face and wants to die the rpms bob up and down fast and it wants to shut off, but when i day to day drive it its fine it seems only after i het vtec, i had the problem before and i pluged in the oil pressure sensor cause it was broken before and it took care of it, do you think low oil would cause that problem?