I have a 2005 Hyundai Sonata, When I start it runs fine for 15min, then shuts off, no codes given but the letter O, C and E blink on my OBD II reader. I replaced the O2 sensors& camshaft sensor
I replaced the camshaft and crankshaft sensor , idle control valve, EGR, o2 sensors,
PCV valve. Justs keeps shutting off after it warms up. I need some help