there are four color vacume hoses running from under the hood to the transmission. after removing the transmission to change the clutch i found that the blue one is disconnected and cannot find where it plugs into. it is disconnected under the antifreeze resevoir and it has the little filter on it. I am having a problem with idle/low rpm it seemes to be shooting fire down the exaust when i rev it up and idles like crap and runs like crap unless under high rpm. i have changed fuel filter,fuel pump, plugs, wires. sorry for the two part question but one may have to do with the other.....