99 kia sephia hard too start sometimes in the morning or sometimes when is warm
has had a tune up , replace fuel pump , replace coolant temp. sensor , had the injectors cleaned , new
battery , rebuilt alternator , rebuilt starter , new timing belt ,. at times stars right away cold or warm , at
times it cranks and cranks but wont start , you have to turn the key back and start again . The scanner
won't give a bad code . I need help.
could be a leaking injector or the fuel pressure regulator could be letting the pressure in the fuel rail drop off as the car sits for a period of time