The Engine Computer constantly monitors for a rich or lean exhaust condition and makes adjustments as necessary. Adding a chemical will affect those adjustments. Now that it's running on gas again you will have to give it time to readjust.
Chemicals aren't going to solve an intermittent stalling problem. They will address hesitation and stumbling concerns caused by an incorrect amount of fuel entering each cylinder.
If the current stumbling is due to low idle speed, you have to do that minimum throttle relearn procedure.
Monday, February 11th, 2013 AT 9:50 AM
