Could also be issue with the fuel i njection system,

来源: 于 2011-05-26 11:49:41 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

buy a bottle of fuel injection system cleaner (the brand is STP), add it to your gas tank, run your engine to clean the fuel injector, see if this can fix the problem.