2009 chevy Malibu 2.4 starts then stalls got to run once then went to idle stalled and same problem. checked converter. not plugged. 3 codes evap po0449 and bank one sensor one, and forgot the other code. now unplugged the battery and started little rough then went to idle fine and runs good. so what is it. and will it strike again. I think it may be something with the security. has 190000 miles and new chains at 176000. runs great other than that. thanks if you can help