Black smoke indicates excessive fuel being burned. Jerking sounds like low speed misfires from a rich condition.
Does the check engine light come on when you first turn the key on (bulb check?) If not it could be blown.
This engine does have a fuel cut off that shuts off the fuel under no load conditions at around 1800 rpm and up and cancels at around 1500 rpm. The only way to check that would be to have a scan tool connected and see if that system is being triggered. It's possible that the TPS or throttle control are sending bad data about engine load, that would show in the live data.
Wednesday, January 25th, 2017 AT 5:15 PM