Help Please!!, Got gas and drove home and parked, 6 hours later get in to go to work and car crank but wouldn’t start, changed the crankshaft sensor and cam sensor, checked fuel pump, spark plugs, batteries, relays, fuses, Scanned it in the beginning and only code that showed was P0400 which was said it wouldn’t stop the car from starting, and the oxygen sensors which were changed already. Does anyone have any clue what can be the problem? Car was running perfectly fine b4 this and regularly maintenance is always done, has 185000 miles. Help!!!! &
Thanks!!!