#engine stall

Howdy Y'all! I am running into what I consider a pretty unique problem and would love some guidance. Here some quick context: -I have a 1985 sunbird, no turbo 1.8 liter -I have swapped in a semi recently rebuilt 1984 1.8 liter no turbo engine The engine runs well, starts at first crank and...

Cold-weather (October to February/March in this climate) makes it so I have to hold onto the key in the ignition and keep forward pressure on while driving it to keep the vehicle running.... Meaning after starting the vehicle, when the key moves back to the 'on' or 'run' position (whichever...