Hi I have 97 OBD2, just put another set of leads on my car and getting more MPG !!!!! Idling and pulling great, good through every gear, only 105000 miles. Not worried about that, but at low revs especially in 2nd and 3rd cornering or up hill, my engine stutters falters, before picking up. Any Ideas? I was thinking a lead, or maybe Coilpack, or mybe a plug................................. Any help would be appreciated, before I spend hours replacing and cleaning parts, is there a test I can do?