Need help please. Can anyone tell me why my 2014 captiva sport ltz 2.4l ( gas) will diesel after I turn the key off. It does it for about 5 to 10 seconds. I have replaced injectors, cam and crank shaft position sensors. Both actuators crank and cam.. I'm waiting getting new fuel pump. Have checked timing chain and all is in line. Running out of options on what to do . Any help would be appreciated and very helpful. Has 178000 miles on engine and 20000 on transmission. Had to have tranny rebuilt. Thank you in advance