so.. I have a venting problem in my gas tank. When the gas cover/lock is unlocked, the idle problem and surge issue seems to go away. Is there a way to clear the vent hole at the top of the gas cover? The gas tank is not venting correctly and is causing fuel distribution problems. This is a problem when cruising with an empty tank and this is causing the gas tank to shrink or swell. Not getting any engine codes. Problem only occurs when the gas cover is locked.