The fuel smell I was asking about a month ago turns out to be a leaking injector. Local mechanic wants about $600 to replace with after market injectors. He specializes in LC's and I trust him. Any advice on whether to replace all six or can I do okay with just replacing the leaking one and put new o-rings and seals on the others while we have it down? Would save me some $. Trying to get it ready for a Colorado road trip and only have a couple of days to repair. Is this a DIY project?