Please Can Anyone Help Me Out

Ok I Have A 86 Caprice And One Day Going Down The Road The Motor Just Cut Out On Me And I Couldnt Get It Started Again. In The Mornings I Always Have Cold Starts Were I Have To Pump The Gas Alot To Get It Started. So A Couple Days Ago I Tried To Start Again And Nothing Happen It Would Turn Over But Not Start So I I Fugured It Would Be The Fiel Pump. So I Changed It Out Now And The Car Starts But Now It Wont Stay On When I Let Go Of The Gas. I Was Thinking About Adjusting The Idle But I Dont Want To Fail The Smog Test When It Comes Up. Do You Have Any Ideas What I Should Do?

Adjust that thing! It's obviously running too slow to stay running at idle when it is cold. You need to adjust the curb idle speed (screw near the electric choke) and then the idle speed (usual place on the Qjet). If you don't do this, then not only will you have a car that won't run well when cold, you'll also have a car that fails CO on the smog test.

You also need to make sure the choke wire is hooked up and the choke is functional, and all of the vacuum pulloffs are working.

You also need to check to make sure the carb is working properly - do you have any check engine codes? Things that can go wrong are the M/C solenoid (had this part fail on my car last December), as well as other carburetor parts (leaking gaskets, plugged or gummed up lines, plugged or gummed jets, etc). The Feedback Carb on these are expensive to replace, but you can rebuild it yourself - it's not much more complicated than a stock Qjet.