Wonder if anyone can help got a problem with the way car runs got a 1.4 16v 2003 clio and on low revs when pitting my foot down and idling the car bogs down. Have changed spark plugs and the plug in computers don't come up with any fault codes? Have had a missfire before and it's actin the same that turned out to be coil pack and the computers picked it up last time. Im pretty confused