my hyundai excel 1999 , i am having problems with it , when i refueled it 3 weeks ago it started running really bad so friends told me to run the fuel out then put in bp ultimate and injector cleaner , on doing this no change if any thing it running worse and when stopping at lights it almosts stalls, and when driving up hills it losses all power, what do u think it may be.
Nov 14, 2010 at 5:28 AM