My car just stops while driving then it will start again and stop again then run on 2001 Kia Optima

i have replaced fuel filter

by in Hampden, MA on May 29, 2013
1 answer 6 comments
ANSWER by on May 29, 2013
Check engine light on when it is running?
COMMENT by on May 30, 2013
yes,it will come on then go off then come back on.
COMMENT by on May 30, 2013
Ok, there are trouble codes stored in the computers memory, go to Advance or Auto Zone and have the codes read and post the code numbers and we can advise.
COMMENT by on May 31, 2013
codes are P0171 and P0335
COMMENT by on May 31, 2013
Have the Crankshaft Position Sensor checked/replaced, not DIY repair, behind timing belt cover, i think! May also have a vacuum leak.
COMMENT by on May 31, 2013
Had those checked already, i am at a loss. The engine light went out today so I will see how long thst lasts. Thank you
COMMENT by on May 31, 2013
Checked how? By whom?? Google OBDII troble codes and check out PO335! Good luck with it.