can any one help me my crx with a zc swap has just started actin stupid on me... when i am ridin around around between 1.6-2.2 grand on tac. my car would start jerkin and kinda sputterin but once i bring it above that i never have problems and it is retarted cause it never did that. some one told me that it could be my coolant or vac. line has a leak in it is. is this true???