Hi guys i am from south Africa capetown i have a lexus ls400 1999 model my cigarette lighter wouldn't work so i check fuses under dash and the cigarette lighter fuse was fine so i thought let check all of the after than wen i start my ls400 it was spluttering and it seems its misfiring when i rev it up does not rev normal before the checking of the fuses everything was 100% can someone hlp me plz