Won't hold idle after moving

[Zoofly]

My 1978 fiat had been sitting for about four weeks. I started it up and let it idle for about 5 minutes no problem. I then backed it out and took it for a quick spin to charge up the battery. When slowing for a stop sign the car died. It started up no problem but wouldn't hold an idle after that. Every time I came to a stop sign it died. I let it sit overnight and tried again. Same thing. It idled fine in the garage but would die once I started driving it. Where should I look to solve the problem? Thanks in advance!

[18Fiatsandcounting]

A couple possibilities:

1) The '78 originally came with dual points, one used for starting and warm-up and one used for normal driving. If yours still has the dual point setup, make sure both gaps (dwell angle) are set correctly.

2) There could be a thermal switch connected to a vacuum line that is leaking, so when the car warms up (the switch opens), air leaks into the intake manifold and it stalls. The switch may not turn on/off at the same time as the automatic choke does.

-Bryan

[Zoofly]

I replaced the points with an electronic ignition a few years ago. I'll see what I can find out about a possible vacuum leak. Thanks