2002 Kia Optima Q&A
2002 Kia Optima Question: my car stumbles and check engine light is on
Have the engine scanned and post the code, so we can help. - ProfessorG
this means you need to get a complete diag of all codes by a good shop,it may be beyond a diy'er - globalhelper
Check Engine Light illumination—combined with a lack of power or a stumble on acceleration—may be caused by the throttle position switch (TPS). Kia released an improved part which ...